diff --git a/src/python/bcc/__init__.py b/src/python/bcc/__init__.py
index 03fcdcf6897c..2d6dc350fc2c 100644
--- a/src/python/bcc/__init__.py
+++ b/src/python/bcc/__init__.py
@@ -576,7 +576,7 @@ def get_kprobe_functions(event_re):
                 elif fn.startswith(b'__perf') or fn.startswith(b'perf_'):
                     continue
                 # Exclude all gcc 8's extra .cold functions
-                elif re.match(b'^.*\.cold\.\d+$', fn):
+                elif re.match(b'^.*\.cold(\.\d+)?$', fn):
                     continue
                 if (t.lower() in [b't', b'w']) and re.match(event_re, fn) \
                     and fn not in blacklist: