diff --git a/cmake/deps/coap.cmake b/cmake/deps/coap.cmake
index 04cb6bb88af..cb5ea9d853e 100644
--- a/cmake/deps/coap.cmake
+++ b/cmake/deps/coap.cmake
@@ -1,10 +1,13 @@
 if(OSSIA_USE_SYSTEM_LIBRARIES)
     find_path(LIBCOAP_INCLUDEDIR coap3/libcoap.h)
     find_library(LIBCOAP_LIBRARIES coap-3)
-    add_library(coap-3 IMPORTED SHARED GLOBAL)
-    add_library(libcoap::coap-3 ALIAS coap-3)
-    target_include_directories(coap-3 INTERFACE "${LIBCOAP_INCLUDEDIR}")
-    set_target_properties(coap-3 PROPERTIES IMPORTED_LOCATION "${LIBCOAP_LIBRARIES}")
+
+    if(LIBCOAP_INCLUDEDIR AND LIBCOAP_LIBRARIES)
+        add_library(coap-3 IMPORTED SHARED GLOBAL)
+        add_library(libcoap::coap-3 ALIAS coap-3)
+        target_include_directories(coap-3 INTERFACE "${LIBCOAP_INCLUDEDIR}")
+        set_target_properties(coap-3 PROPERTIES IMPORTED_LOCATION "${LIBCOAP_LIBRARIES}")
+    endif()
 endif()
 
 if(NOT TARGET libcoap::coap-3)