diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 2c1bec3..467a23b 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -187,6 +187,7 @@
 			 * symbol, free he->ms.sym->src to signal we already
 			 * processed this symbol.
 			 */
+			zfree(&notes->src->cycles_hist);
 			zfree(&notes->src);
 		}
 	}