diff --git a/src/uas/QGCUASFileManager.cc b/src/uas/QGCUASFileManager.cc
index 512a3c03260a64bfb517ed2cbb1d0652b0453188..5e309f003203ad5c34dd8747a05ae96f6437d94c 100644
--- a/src/uas/QGCUASFileManager.cc
+++ b/src/uas/QGCUASFileManager.cc
@@ -482,7 +482,7 @@ void QGCUASFileManager::uploadPath(const QString& toPath, const QFileInfo& uploa
         return;
     }
 
-    if(not uploadFile.isReadable()){
+    if(!uploadFile.isReadable()){
         _emitErrorMessage(tr("File (%1) is not readable for upload").arg(uploadFile.path()));
     }