diff --git a/dlls/wintrust/wintrust.spec b/dlls/wintrust/wintrust.spec
index 28de1555027..10aaf670942 100644
--- a/dlls/wintrust/wintrust.spec
+++ b/dlls/wintrust/wintrust.spec
@@ -116,7 +116,7 @@
 @ stub WintrustGetDefaultForUsage
 @ stdcall WintrustGetRegPolicyFlags(ptr)
 @ stub WintrustLoadFunctionPointers
-@ stub WintrustRemoveActionID
+@ stdcall WintrustRemoveActionID(ptr)
 @ stdcall WintrustSetRegPolicyFlags(long)
 @ stub mscat32DllRegisterServer
 @ stub mscat32DllUnregisterServer
diff --git a/dlls/wintrust/wintrust_main.c b/dlls/wintrust/wintrust_main.c
index 3ecbf901127..5e435ea80c4 100644
--- a/dlls/wintrust/wintrust_main.c
+++ b/dlls/wintrust/wintrust_main.c
@@ -153,6 +153,16 @@ BOOL WINAPI WintrustAddActionID( GUID* pgActionID, DWORD fdwFlags,
     return FALSE;
 }
 
+/***********************************************************************
+ *              WintrustRemoveActionID (WINTRUST.@)
+ */
+BOOL WINAPI WintrustRemoveActionID( GUID* pgActionID )
+{
+    FIXME("(%s)\n", debugstr_guid(pgActionID));
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
 /***********************************************************************
  *		WintrustGetRegPolicyFlags (WINTRUST.@)
  */
diff --git a/include/wintrust.h b/include/wintrust.h
index d490ac97f31..baadf254335 100644
--- a/include/wintrust.h
+++ b/include/wintrust.h
@@ -289,6 +289,7 @@ extern "C" {
 #endif
 
 BOOL      WINAPI WintrustAddActionID(GUID*,DWORD,CRYPT_REGISTER_ACTIONID*);
+BOOL      WINAPI WintrustRemoveActionID(GUID*);
 void      WINAPI WintrustGetRegPolicyFlags(DWORD*);
 LONG      WINAPI WinVerifyTrust(HWND,GUID*,WINTRUST_DATA*);
 HRESULT   WINAPI WinVerifyTrustEx(HWND,GUID*,WINTRUST_DATA*);