diff --git a/GCDWebServer/Core/GCDWebServer.m b/GCDWebServer/Core/GCDWebServer.m
index aa407d1..5ae8f9e 100644
--- a/GCDWebServer/Core/GCDWebServer.m
+++ b/GCDWebServer/Core/GCDWebServer.m
@@ -623,7 +623,7 @@ static inline NSString* _EncodeBase64(NSString* string) {
 }
 
 - (BOOL)isRunning {
-  return (_source ? YES : NO);
+  return (_options ? YES : NO);
 }
 
 - (void)stop {