diff --git a/ext/com_dotnet/com_iterator.c b/ext/com_dotnet/com_iterator.c
index 4569023221a..c179b567216 100644
--- a/ext/com_dotnet/com_iterator.c
+++ b/ext/com_dotnet/com_iterator.c
@@ -232,7 +232,7 @@ fail:
 	if (I) {
 		VariantClear(&I->safe_array);
 		VariantClear(&I->v);
-		free(I);
+		efree(I);
 	}
 	return NULL;
 }