diff --git a/src/libsysprof/sysprof-categories.c b/src/libsysprof/sysprof-categories.c
index 5a96d3ee..310ac8ec 100644
--- a/src/libsysprof/sysprof-categories.c
+++ b/src/libsysprof/sysprof-categories.c
@@ -166,7 +166,8 @@ sysprof_categories_new (void)
       lineno++;
       g_strstrip (line);
 
-      if (line[0] == 0)
+      /* # starts comment line */
+      if (line[0] == 0 || line[0] == '#')
         continue;
 
       /* Group lines look like "binary nick:\n" */