diff --git a/interface/src/scripting/AssetMappingsScriptingInterface.cpp b/interface/src/scripting/AssetMappingsScriptingInterface.cpp
index ba533a5bd1..2d288a8804 100644
--- a/interface/src/scripting/AssetMappingsScriptingInterface.cpp
+++ b/interface/src/scripting/AssetMappingsScriptingInterface.cpp
@@ -114,7 +114,7 @@ void AssetMappingsScriptingInterface::uploadFile(QString path, QString mapping,
 
     QString extension = "";
     auto idx = path.lastIndexOf(".");
-    if (idx) {
+    if (idx >= 0) {
         extension = path.mid(idx + 1);
     }
 
@@ -384,4 +384,4 @@ void AssetMappingModel::setupRoles() {
     roleNames[Qt::DisplayRole] = "name";
     roleNames[Qt::UserRole + 5] = "baked";
     setItemRoleNames(roleNames);
-}
\ No newline at end of file
+}