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-rw-r--r--ext/com_dotnet/com_variant.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/com_dotnet/com_variant.c b/ext/com_dotnet/com_variant.c
index 882100af62..fd08aeb224 100644
--- a/ext/com_dotnet/com_variant.c
+++ b/ext/com_dotnet/com_variant.c
@@ -755,6 +755,8 @@ static void variant_unary_operation(enum variant_unary_opcode op, INTERNAL_FUNCT
case VOP_NOT:
result = VarNot(vleft, &vres);
break;
+ default:
+ result = E_INVALIDARG;
}
if (SUCCEEDED(result)) {