diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index e77dc88..1e6c65e 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -169,7 +169,7 @@
 {
 	Dwarf_Files *files;
 	size_t nfiles, i;
-	const char *src;
+	const char *src = NULL;
 	int ret;
 
 	if (!fname)