diff --git a/tools/sst_dump.cc b/tools/sst_dump.cc
index c89b8e372bab256862ce95312475793de5110e4f..903889556c388eedaa1622591281e72e776797de 100644
--- a/tools/sst_dump.cc
+++ b/tools/sst_dump.cc
@@ -180,7 +180,9 @@ int main(int argc, char** argv) {
       output_hex = true;
     } else if (strcmp(argv[i], "--input_key_hex") == 0) {
       input_key_hex = true;
-    } else if (sscanf(argv[i], "--read_num=%ld%c", &n, &junk) == 1) {
+    } else if (sscanf(argv[i],
+               "--read_num=%lu%c",
+               (unsigned long*)&n, &junk) == 1) {
       read_num = n;
     } else if (strcmp(argv[i], "--verify_checksum") == 0) {
       verify_checksum = true;
diff --git a/util/histogram.cc b/util/histogram.cc
index 19b6189d6d1e1a323843418e5ece4496b82aa750..e83998014046310bcf4f0bb7a6de5c16603c9bb1 100644
--- a/util/histogram.cc
+++ b/util/histogram.cc
@@ -169,7 +169,7 @@ std::string HistogramImpl::ToString() const {
              // left
              (unsigned long)((b == 0) ? 0 : bucketMapper.BucketLimit(b-1)),
              (unsigned long)bucketMapper.BucketLimit(b), // right
-             buckets_[b],                 // count
+             (unsigned long)buckets_[b],                 // count
              (mult * buckets_[b]),        // percentage
              (mult * sum));               // cumulative percentage
     r.append(buf);