diff --git a/src/main/java/meteordevelopment/meteorclient/mixin/KeyboardMixin.java b/src/main/java/meteordevelopment/meteorclient/mixin/KeyboardMixin.java
index 47a64b8ce8..a174506f36 100644
--- a/src/main/java/meteordevelopment/meteorclient/mixin/KeyboardMixin.java
+++ b/src/main/java/meteordevelopment/meteorclient/mixin/KeyboardMixin.java
@@ -30,6 +30,14 @@ public abstract class KeyboardMixin {
     @Inject(method = "onKey", at = @At("HEAD"), cancellable = true)
     public void onKey(long window, int key, int scancode, int action, int modifiers, CallbackInfo info) {
         if (key != GLFW.GLFW_KEY_UNKNOWN) {
+            // on Linux/X11 the modifier is not active when the key is pressed and still active when the key is released
+            // https://github.com/glfw/glfw/issues/1630
+            if (action == GLFW.GLFW_PRESS) {
+                modifiers |= Input.getModifier(key);
+            } else if (action == GLFW.GLFW_RELEASE) {
+                modifiers &= ~Input.getModifier(key);
+            }
+
             if (client.currentScreen instanceof WidgetScreen && action == GLFW.GLFW_REPEAT) {
                 ((WidgetScreen) client.currentScreen).keyRepeated(key, modifiers);
             }
diff --git a/src/main/java/meteordevelopment/meteorclient/utils/misc/input/Input.java b/src/main/java/meteordevelopment/meteorclient/utils/misc/input/Input.java
index c556ae32b5..b723cc70ee 100644
--- a/src/main/java/meteordevelopment/meteorclient/utils/misc/input/Input.java
+++ b/src/main/java/meteordevelopment/meteorclient/utils/misc/input/Input.java
@@ -60,4 +60,14 @@ public static void setCursorStyle(CursorStyle style) {
             lastCursorStyle = style;
         }
     }
+
+    public static int getModifier(int key) {
+        return switch (key) {
+            case GLFW.GLFW_KEY_LEFT_SHIFT, GLFW.GLFW_KEY_RIGHT_SHIFT -> GLFW.GLFW_MOD_SHIFT;
+            case GLFW.GLFW_KEY_LEFT_CONTROL, GLFW.GLFW_KEY_RIGHT_CONTROL -> GLFW.GLFW_MOD_CONTROL;
+            case GLFW.GLFW_KEY_LEFT_ALT, GLFW.GLFW_KEY_RIGHT_ALT -> GLFW.GLFW_MOD_ALT;
+            case GLFW.GLFW_KEY_LEFT_SUPER, GLFW.GLFW_KEY_RIGHT_SUPER -> GLFW.GLFW_MOD_SUPER;
+            default -> 0;
+        };
+    }
 }