diff --git a/dlls/devenum/createdevenum.c b/dlls/devenum/createdevenum.c
index e44e6ecda48..8a3160c6751 100644
--- a/dlls/devenum/createdevenum.c
+++ b/dlls/devenum/createdevenum.c
@@ -778,7 +778,7 @@ static void register_avicap_devices(void)
     WCHAR friendlyname[] = {'v','i','d','e','o','0',0};
     IPropertyBag *prop_bag = NULL;
     WCHAR name[32], version[32];
-    REGFILTERPINS2 rgpins;
+    REGFILTERPINS2 rgpins = {0};
     REGPINTYPES rgtypes;
     REGFILTER2 rgf;
     VARIANT var;