diff --git a/toolkit/components/telemetry/gen-histogram-bucket-ranges.py b/toolkit/components/telemetry/gen-histogram-bucket-ranges.py
index a05a3cedd57b..770c0b2c7f93 100644
--- a/toolkit/components/telemetry/gen-histogram-bucket-ranges.py
+++ b/toolkit/components/telemetry/gen-histogram-bucket-ranges.py
@@ -46,7 +46,7 @@ def main(argv):
         
         all_histograms.update({ name: parameters });
 
-        if startup_histogram_re.match(name) is not None:
+        if startup_histogram_re.search(name) is not None:
             all_histograms.update({ "STARTUP_" + name: parameters })
 
     print json.dumps({ 'histograms': all_histograms})