diff --git a/unittest-logs/unittest-log.py b/unittest-logs/unittest-log.py
index 0337ad4..025c09e 100755
--- a/unittest-logs/unittest-log.py
+++ b/unittest-logs/unittest-log.py
@@ -108,9 +108,9 @@ def FindChangesetInScrape(scrape):
   return None
 
 def OSFromBuilderName(name):
-  if name.startswith("Linux"):
+  if name.startswith("Linux") or name.startswith("Rev3 Fedora") or name.startswith("Fedora"):
     return OS.Linux
-  if name.startswith("MacOSX") or name.startswith("OS X"):
+  if name.startswith("MacOSX") or name.startswith("OS X") or name.startswith("Rev3 MacOSX"):
     return OS.Mac
   if name.startswith("WINNT"):
     return OS.Windows