diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index b812f14..3ba9c53 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -515,15 +515,18 @@
 }
 #endif
 
+/*
+ * Stuff 'lr' according to the line range described by 'arg'.
+ * The line range syntax is described by:
+ *
+ *         SRC[:SLN[+NUM|-ELN]]
+ *         FNC[:SLN[+NUM|-ELN]]
+ */
 int parse_line_range_desc(const char *arg, struct line_range *lr)
 {
 	const char *ptr;
 	char *tmp;
-	/*
-	 * <Syntax>
-	 * SRC:SLN[+NUM|-ELN]
-	 * FUNC[:SLN[+NUM|-ELN]]
-	 */
+
 	ptr = strchr(arg, ':');
 	if (ptr) {
 		lr->start = (int)strtoul(ptr + 1, &tmp, 0);