diff --git a/src/Worker/Runner.cpp b/src/Worker/Runner.cpp
index ea213dbe..6cda2a68 100644
--- a/src/Worker/Runner.cpp
+++ b/src/Worker/Runner.cpp
@@ -19,7 +19,7 @@ namespace Worker
 		printf("Attaching to parent process %d...\n", this->processId);
 		HANDLE processHandle = OpenProcess(SYNCHRONIZE, FALSE, this->processId);
 
-		if (!processHandle || processHandle == INVALID_HANDLE_VALUE && !Runner::isProcessAlive())
+		if ((!processHandle || processHandle == INVALID_HANDLE_VALUE) && !Runner::isProcessAlive())
 		{
 			printf("Unable to attach to parent process\n");
 			return;