diff --git a/util/ttgrep.py b/util/ttgrep.py
index bc4c9f2c..72084f6d 100755
--- a/util/ttgrep.py
+++ b/util/ttgrep.py
@@ -33,7 +33,7 @@ def scan(f, pattern):
     writes = 0
     compiled = re.compile(pattern)
     for line in f:
-        match = re.match(' *([-0-9.]+) us \(\+ *([0-9.]+) us\) (.*)',
+        match = re.match(r' *([-0-9.]+) us \(\+ *([0-9.]+) us\) (.*)',
                 line)
         if not match:
             continue
@@ -64,4 +64,4 @@ def scan(f, pattern):
     print("Usage: %s [--rebase] regex [logFile]" % (sys.argv[0]))
     sys.exit(1)
 
-scan(f, sys.argv[1])
\ No newline at end of file
+scan(f, sys.argv[1])