1 files changed, 1 insertions, 1 deletions
diff --git a/src/helper.cpp b/src/helper.cpp
index 4c22dbda..1f072bd9 100644
--- a/src/helper.cpp
+++ b/src/helper.cpp
@@ -49,7 +49,7 @@ static bool helperExec(LPCWSTR moDirectory, LPCWSTR commandLine)
 
   ::ShellExecuteExW(&execInfo);
 
-  if (::WaitForSingleObject(execInfo.hProcess, INFINITE) != WAIT_OBJECT_0) {
+  if ((execInfo.hProcess == 0) || (::WaitForSingleObject(execInfo.hProcess, INFINITE) != WAIT_OBJECT_0)) {
     reportError(QObject::tr("helper failed"));
     return false;
   }