diff --git a/tools/patman/patchstream.py b/tools/patman/patchstream.py
index 4fda852..fc7492e 100644
--- a/tools/patman/patchstream.py
+++ b/tools/patman/patchstream.py
@@ -52,7 +52,7 @@
 re_tag = re.compile('^(Tested-by|Acked-by|Reviewed-by|Cc): (.*)')
 
 # The start of a new commit in the git log
-re_commit = re.compile('^commit (.*)')
+re_commit = re.compile('^commit ([0-9a-f]*)$')
 
 # We detect these since checkpatch doesn't always do it
 re_space_before_tab = re.compile('^[+].* \t')