diff --git a/dlls/wininet/urlcache.c b/dlls/wininet/urlcache.c
index c22883d9e47..bf67fecec03 100644
--- a/dlls/wininet/urlcache.c
+++ b/dlls/wininet/urlcache.c
@@ -3626,3 +3626,12 @@ DWORD WINAPI GetDiskInfoA(void *p0, void *p1, void *p2, void *p3)
     FIXME("(%p, %p, %p, %p)\n", p0, p1, p2, p3);
     return 0;
 }
+
+/***********************************************************************
+ *           RegisterUrlCacheNotification (WININET.@)
+ */
+DWORD WINAPI RegisterUrlCacheNotification(LPVOID a, DWORD b, DWORD c, DWORD d, DWORD e, DWORD f)
+{
+    FIXME("(%p %x %x %x %x %x)\n", a, b, c, d, e, f);
+    return 0;
+}
diff --git a/dlls/wininet/wininet.spec b/dlls/wininet/wininet.spec
index 8db462cd967..78b98cc1ac1 100644
--- a/dlls/wininet/wininet.spec
+++ b/dlls/wininet/wininet.spec
@@ -216,7 +216,7 @@
 @ stub PrivacyGetZonePreferenceW # (long long ptr ptr ptr)
 @ stub PrivacySetZonePreferenceW # (long long long wstr)
 @ stdcall ReadUrlCacheEntryStream(ptr long ptr ptr long)
-@ stub RegisterUrlCacheNotification
+@ stdcall RegisterUrlCacheNotification(ptr long long long long long)
 @ stdcall ResumeSuspendedDownload(long long)
 @ stdcall RetrieveUrlCacheEntryFileA(str ptr ptr long)
 @ stdcall RetrieveUrlCacheEntryFileW(wstr ptr ptr long)