diff --git a/src/_macosx.m b/src/_macosx.m
index 2beeda14722d..4a4381b72b78 100755
--- a/src/_macosx.m
+++ b/src/_macosx.m
@@ -1118,7 +1118,7 @@ - (void)launch:(NSNotification*)notification
     CFRunLoopSourceRef source;
     NSDictionary* dictionary = [notification userInfo];
     if (![[dictionary valueForKey:@"NSApplicationName"]
-          isEqualToString:@"Python"])
+            localizedCaseInsensitiveContainsString:@"python"])
         return;
     NSNumber* psnLow = [dictionary valueForKey: @"NSApplicationProcessSerialNumberLow"];
     NSNumber* psnHigh = [dictionary valueForKey: @"NSApplicationProcessSerialNumberHigh"];