diff --git a/dlls/wintrust/wintrust.spec b/dlls/wintrust/wintrust.spec
index add61b72601..6acdde352a5 100644
--- a/dlls/wintrust/wintrust.spec
+++ b/dlls/wintrust/wintrust.spec
@@ -2,7 +2,7 @@
 @ stub CryptCATAdminCalcHashFromFileHandle
 @ stub CryptCATAdminEnumCatalogFromHash
 @ stub CryptCATAdminPauseServiceForBackup
-@ stub CryptCATAdminReleaseContext
+@ stdcall CryptCATAdminReleaseContext(long long)
 @ stub CryptCATAdminReleaseCatalogContext
 @ stub CryptCATAdminRemoveCatalog
 @ stub CryptCATAdminResolveCatalogPath
diff --git a/dlls/wintrust/wintrust_main.c b/dlls/wintrust/wintrust_main.c
index c2ca1b4621c..9b7eb355a5a 100644
--- a/dlls/wintrust/wintrust_main.c
+++ b/dlls/wintrust/wintrust_main.c
@@ -42,6 +42,16 @@ BOOL WINAPI CryptCATAdminAcquireContext(HCATADMIN* catAdmin,
     return FALSE;
 }
 
+/***********************************************************************
+ *		CryptCATAdminReleaseContext (WINTRUST.@)
+ */
+BOOL WINAPI CryptCATAdminReleaseContext(HCATADMIN hCatAdmin, DWORD dwFlags )
+{
+    FIXME("%p %lx\n", hCatAdmin, dwFlags);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
 /***********************************************************************
  *		WinVerifyTrust (WINTRUST.@)
  */