diff --git a/plugins/mac-capture/mac-display-capture.m b/plugins/mac-capture/mac-display-capture.m
index 9ed2e9272d839b..0a66b65da6ff20 100644
--- a/plugins/mac-capture/mac-display-capture.m
+++ b/plugins/mac-capture/mac-display-capture.m
@@ -286,27 +286,7 @@ bool init_vertbuf(struct display_capture *dc)
     init_window(&dc->window, settings);
     load_crop(dc, settings);
 
-    bool legacy_display_id = obs_data_has_user_value(settings, "display");
-    if (legacy_display_id) {
-        CGDirectDisplayID display_id = (CGDirectDisplayID) obs_data_get_int(settings, "display");
-        CFUUIDRef display_uuid = CGDisplayCreateUUIDFromDisplayID(display_id);
-        CFStringRef uuid_string = CFUUIDCreateString(kCFAllocatorDefault, display_uuid);
-        obs_data_set_string(settings, "display_uuid", CFStringGetCStringPtr(uuid_string, kCFStringEncodingUTF8));
-        obs_data_erase(settings, "display");
-        CFRelease(uuid_string);
-        CFRelease(display_uuid);
-    }
-
-    const char *display_uuid = obs_data_get_string(settings, "display_uuid");
-    if (display_uuid) {
-        CFStringRef uuid_string = CFStringCreateWithCString(kCFAllocatorDefault, display_uuid, kCFStringEncodingUTF8);
-        CFUUIDRef uuid_ref = CFUUIDCreateFromString(kCFAllocatorDefault, uuid_string);
-        dc->display = CGDisplayGetDisplayIDFromUUID(uuid_ref);
-        CFRelease(uuid_string);
-        CFRelease(uuid_ref);
-    } else {
-        dc->display = CGMainDisplayID();
-    }
+    dc->display = get_display_migrate_settings(settings);
 
     pthread_mutex_init(&dc->mutex, NULL);
 
@@ -561,12 +541,7 @@ static void display_capture_update(void *data, obs_data_t *settings)
     if (requires_window(dc->crop))
         update_window(&dc->window, settings);
 
-    CFStringRef uuid_string = CFStringCreateWithCString(
-        kCFAllocatorDefault, obs_data_get_string(settings, "display_uuid"), kCFStringEncodingUTF8);
-    CFUUIDRef display_uuid = CFUUIDCreateFromString(kCFAllocatorDefault, uuid_string);
-    CGDirectDisplayID display = CGDisplayGetDisplayIDFromUUID(display_uuid);
-    CFRelease(uuid_string);
-    CFRelease(display_uuid);
+    CGDirectDisplayID display = get_display_migrate_settings(settings);
 
     bool show_cursor = obs_data_get_bool(settings, "show_cursor");
     if (dc->display == display && dc->hide_cursor != show_cursor)
diff --git a/plugins/mac-capture/mac-sck-video-capture.m b/plugins/mac-capture/mac-sck-video-capture.m
index 18bcda8f3ff66a..524270da0715e8 100644
--- a/plugins/mac-capture/mac-sck-video-capture.m
+++ b/plugins/mac-capture/mac-sck-video-capture.m
@@ -1,4 +1,5 @@
 #include "mac-sck-common.h"
+#include "window-utils.h"
 
 static void destroy_screen_stream(struct screen_capture *sc)
 {
@@ -271,27 +272,7 @@ static bool init_screen_stream(struct screen_capture *sc)
     if (!sc->effect)
         goto fail;
 
-    bool legacy_display_id = obs_data_has_user_value(settings, "display");
-    if (legacy_display_id) {
-        CGDirectDisplayID display_id = (CGDirectDisplayID) obs_data_get_int(settings, "display");
-        CFUUIDRef display_uuid = CGDisplayCreateUUIDFromDisplayID(display_id);
-        CFStringRef uuid_string = CFUUIDCreateString(kCFAllocatorDefault, display_uuid);
-        obs_data_set_string(settings, "display_uuid", CFStringGetCStringPtr(uuid_string, kCFStringEncodingUTF8));
-        obs_data_erase(settings, "display");
-        CFRelease(uuid_string);
-        CFRelease(display_uuid);
-    }
-
-    const char *display_uuid = obs_data_get_string(settings, "display_uuid");
-    if (display_uuid) {
-        CFStringRef uuid_string = CFStringCreateWithCString(kCFAllocatorDefault, display_uuid, kCFStringEncodingUTF8);
-        CFUUIDRef uuid_ref = CFUUIDCreateFromString(kCFAllocatorDefault, uuid_string);
-        sc->display = CGDisplayGetDisplayIDFromUUID(uuid_ref);
-        CFRelease(uuid_string);
-        CFRelease(uuid_ref);
-    } else {
-        sc->display = CGMainDisplayID();
-    }
+    sc->display = get_display_migrate_settings(settings);
 
     sc->application_id = [[NSString alloc] initWithUTF8String:obs_data_get_string(settings, "application")];
     pthread_mutex_init(&sc->mutex, NULL);
@@ -420,12 +401,7 @@ static void sck_video_capture_update(void *data, obs_data_t *settings)
 
     ScreenCaptureStreamType capture_type = (ScreenCaptureStreamType) obs_data_get_int(settings, "type");
 
-    CFStringRef uuid_string = CFStringCreateWithCString(
-        kCFAllocatorDefault, obs_data_get_string(settings, "display_uuid"), kCFStringEncodingUTF8);
-    CFUUIDRef display_uuid = CFUUIDCreateFromString(kCFAllocatorDefault, uuid_string);
-    CGDirectDisplayID display = CGDisplayGetDisplayIDFromUUID(display_uuid);
-    CFRelease(uuid_string);
-    CFRelease(display_uuid);
+    CGDirectDisplayID display = get_display_migrate_settings(settings);
 
     NSString *application_id = [[NSString alloc] initWithUTF8String:obs_data_get_string(settings, "application")];
     bool show_cursor = obs_data_get_bool(settings, "show_cursor");
diff --git a/plugins/mac-capture/window-utils.h b/plugins/mac-capture/window-utils.h
index cdbd0965fbfeb9..d113ed05438662 100644
--- a/plugins/mac-capture/window-utils.h
+++ b/plugins/mac-capture/window-utils.h
@@ -31,3 +31,8 @@ void window_defaults(obs_data_t *settings);
 void add_window_properties(obs_properties_t *props);
 
 void show_window_properties(obs_properties_t *props, bool show);
+
+/** Get the display ID of a display and simultaneously migrate pre-30.0 display IDs to 30.0 UUIDs.
+ - Parameter settings: Pointer to `obs_data_t` object containing `display` int and/or `display_uuid` string
+ - Returns: `CGDirectDisplayID` of the display the user selected. May be 0 if the display cannot be found. */
+CGDirectDisplayID get_display_migrate_settings(obs_data_t *settings);
diff --git a/plugins/mac-capture/window-utils.m b/plugins/mac-capture/window-utils.m
index b054b77ad7a8ae..b69adab5faf91b 100644
--- a/plugins/mac-capture/window-utils.m
+++ b/plugins/mac-capture/window-utils.m
@@ -245,3 +245,36 @@ void show_window_properties(obs_properties_t *props, bool show)
     obs_property_set_visible(obs_properties_get(props, "window"), show);
     obs_property_set_visible(obs_properties_get(props, "show_empty_names"), show);
 }
+
+CGDirectDisplayID get_display_migrate_settings(obs_data_t *settings)
+{
+    bool legacy_display_id = obs_data_has_user_value(settings, "display");
+    bool new_display_id = obs_data_has_user_value(settings, "display_uuid");
+    if (legacy_display_id && !new_display_id) {
+        CGDirectDisplayID display_id = (CGDirectDisplayID) obs_data_get_int(settings, "display");
+        CFUUIDRef display_uuid = CGDisplayCreateUUIDFromDisplayID(display_id);
+        if (display_uuid) {
+            CFStringRef uuid_string = CFUUIDCreateString(kCFAllocatorDefault, display_uuid);
+            obs_data_set_string(settings, "display_uuid", CFStringGetCStringPtr(uuid_string, kCFStringEncodingUTF8));
+            obs_data_erase(settings, "display");
+            CFRelease(uuid_string);
+            CFRelease(display_uuid);
+        } else {
+            return 0;
+        }
+    } else if (legacy_display_id && new_display_id) {
+        obs_data_erase(settings, "display");
+    }
+
+    const char *display_uuid = obs_data_get_string(settings, "display_uuid");
+    if (display_uuid) {
+        CFStringRef uuid_string = CFStringCreateWithCString(kCFAllocatorDefault, display_uuid, kCFStringEncodingUTF8);
+        CFUUIDRef uuid_ref = CFUUIDCreateFromString(kCFAllocatorDefault, uuid_string);
+        CGDirectDisplayID display = CGDisplayGetDisplayIDFromUUID(uuid_ref);
+        CFRelease(uuid_string);
+        CFRelease(uuid_ref);
+        return display;
+    } else {
+        return 0;
+    }
+}