diff --git a/Source/cmake/WebKitCompilerFlags.cmake b/Source/cmake/WebKitCompilerFlags.cmake
index 5b081a2784add..51012eb259c1e 100644
--- a/Source/cmake/WebKitCompilerFlags.cmake
+++ b/Source/cmake/WebKitCompilerFlags.cmake
@@ -230,12 +230,21 @@ if (COMPILER_IS_GCC_OR_CLANG)
     WEBKIT_PREPEND_GLOBAL_COMPILER_FLAGS(-pipe)
 
     if (USE_BUN_JSC_ADDITIONS)
-        WEBKIT_PREPEND_GLOBAL_COMPILER_FLAGS(-Wl,-u,_WTFTimer__create
-                                             -Wl,-u,_WTFTimer__update
-                                             -Wl,-u,_WTFTimer__deinit
-                                             -Wl,-u,_WTFTimer__isActive
-                                             -Wl,-u,_WTFTimer__secondsUntilTimer
-                                             -Wl,-u,_WTFTimer__cancel)
+        if (APPLE)
+            WEBKIT_PREPEND_GLOBAL_COMPILER_FLAGS(-Wl,-U,_WTFTimer__create
+                                                -Wl,-U,_WTFTimer__update
+                                                -Wl,-U,_WTFTimer__deinit
+                                                -Wl,-U,_WTFTimer__isActive
+                                                -Wl,-U,_WTFTimer__secondsUntilTimer
+                                                -Wl,-U,_WTFTimer__cancel)
+        else()
+            WEBKIT_PREPEND_GLOBAL_COMPILER_FLAGS(-Wl,-u,_WTFTimer__create
+                                                -Wl,-u,_WTFTimer__update
+                                                -Wl,-u,_WTFTimer__deinit
+                                                -Wl,-u,_WTFTimer__isActive
+                                                -Wl,-u,_WTFTimer__secondsUntilTimer
+                                                -Wl,-u,_WTFTimer__cancel)
+        endif()
     endif ()
 endif ()