diff --git a/tools/gn/last_commit_position.py b/tools/gn/last_commit_position.py
index b710ed0..a91f722 100644
--- a/tools/gn/last_commit_position.py
+++ b/tools/gn/last_commit_position.py
@@ -95,7 +95,6 @@
 
 value = FetchCommitPosition(git_directory)
 if not value:
-  print "Could not get last commit position."
-  sys.exit(1)
+  value = 'UNKNOWN'
 
 WriteHeader(output_file, header_guard, value)