diff --git a/cmake/QtPriHelpers.cmake b/cmake/QtPriHelpers.cmake
index c619a50f30f..f1d45cdcf6c 100644
--- a/cmake/QtPriHelpers.cmake
+++ b/cmake/QtPriHelpers.cmake
@@ -26,9 +26,14 @@ function(qt_generate_qmake_libraries_pri_content module_name output_root_dir out
         set(lib_incdir "")
         set(lib_libdir "")
         set(lib_libs "")
+        set(seen_targets "")
         while(lib_targets)
             list(POP_BACK lib_targets lib_target)
             if(TARGET ${lib_target})
+                if(${lib_target} IN_LIST seen_targets)
+                    continue()
+                endif()
+                list(APPEND seen_targets ${lib_target})
                 get_target_property(lib_target_type ${lib_target} TYPE)
                 if(lib_target_type STREQUAL "INTERFACE_LIBRARY")
                     get_target_property(iface_libs ${lib_target} INTERFACE_LINK_LIBRARIES)