diff --git a/src/intset.c b/src/intset.c
index b61530e45198..5d894e3cd08b 100644
--- a/src/intset.c
+++ b/src/intset.c
@@ -133,7 +133,7 @@ static uint8_t intsetSearch(intset *is, int64_t value, uint32_t *pos) {
     }
 
     while(max >= min) {
-        mid = (min+max)/2;
+        mid = ((unsigned int)min + (unsigned int)max) >> 1;
         cur = _intsetGet(is,mid);
         if (value > cur) {
             min = mid+1;