diff --git a/src/redis-benchmark.c b/src/redis-benchmark.c
index 7ab700d3fcaffa9a9efe1dbfa039f663f0538b8e..69c740242ddfcff6b9171d42c263b531ebb718b3 100644
--- a/src/redis-benchmark.c
+++ b/src/redis-benchmark.c
@@ -107,7 +107,7 @@ static long long mstime(void) {
     long long mst;
 
     gettimeofday(&tv, NULL);
-    mst = ((long)tv.tv_sec)*1000;
+    mst = ((long long)tv.tv_sec)*1000;
     mst += tv.tv_usec/1000;
     return mst;
 }
diff --git a/src/redis-cli.c b/src/redis-cli.c
index e8c6be5e0be10da0daab8300f303be70e086897a..3969fbab58c004265dfa23a49aac9b4b9da784a7 100644
--- a/src/redis-cli.c
+++ b/src/redis-cli.c
@@ -95,7 +95,7 @@ static long long mstime(void) {
     long long mst;
 
     gettimeofday(&tv, NULL);
-    mst = ((long)tv.tv_sec)*1000;
+    mst = ((long long)tv.tv_sec)*1000;
     mst += tv.tv_usec/1000;
     return mst;
 }