diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index e77dc886760e5350ea56d1043d400e914678b817..1e6c65ebbd80f6f1954ffec13715a21ab9f53ed2 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -169,7 +169,7 @@ static const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname)
 {
 	Dwarf_Files *files;
 	size_t nfiles, i;
-	const char *src;
+	const char *src = NULL;
 	int ret;
 
 	if (!fname)