1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/util/tsc.c b/tools/perf/util/tsc.c
index 4d4210d4e13d..1b741646eed0 100644
--- a/tools/perf/util/tsc.c
+++ b/tools/perf/util/tsc.c
@@ -19,7 +19,7 @@ u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc)
         u64 quot, rem;
 
         quot = cyc >> tc->time_shift;
-        rem  = cyc & ((1 << tc->time_shift) - 1);
+        rem  = cyc & (((u64)1 << tc->time_shift) - 1);
         return tc->time_zero + quot * tc->time_mult +
                ((rem * tc->time_mult) >> tc->time_shift);
 }