diff --git a/src/core/support/murmur_hash.c b/src/core/support/murmur_hash.c
index e875ba72283..37fdca82ba0 100644
--- a/src/core/support/murmur_hash.c
+++ b/src/core/support/murmur_hash.c
@@ -78,9 +78,9 @@ gpr_uint32 gpr_murmur_hash3(const void *key, size_t len, gpr_uint32 seed) {
   /* tail */
   switch (len & 3) {
     case 3:
-      k1 ^= (gpr_uint32)(tail[2] << 16);
+      k1 ^= ((gpr_uint32)tail[2]) << 16;
     case 2:
-      k1 ^= (gpr_uint32)(tail[1] << 8);
+      k1 ^= ((gpr_uint32)tail[1]) << 8;
     case 1:
       k1 ^= tail[0];
       k1 *= c1;
diff --git a/src/core/support/slice.c b/src/core/support/slice.c
index a2d62fc1e53..5a3dbe17362 100644
--- a/src/core/support/slice.c
+++ b/src/core/support/slice.c
@@ -31,6 +31,8 @@
  *
  */
 
+#include <sys/types.h>
+
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/slice.h>
@@ -313,7 +315,7 @@ gpr_slice gpr_slice_split_head(gpr_slice *source, size_t split) {
 }
 
 int gpr_slice_cmp(gpr_slice a, gpr_slice b) {
-  int d = (int)(GPR_SLICE_LENGTH(a) - GPR_SLICE_LENGTH(b));
+  ssize_t d = (ssize_t)(GPR_SLICE_LENGTH(a) - GPR_SLICE_LENGTH(b));
   if (d != 0) return d;
   return memcmp(GPR_SLICE_START_PTR(a), GPR_SLICE_START_PTR(b),
                 GPR_SLICE_LENGTH(a));
@@ -321,7 +323,7 @@ int gpr_slice_cmp(gpr_slice a, gpr_slice b) {
 
 int gpr_slice_str_cmp(gpr_slice a, const char *b) {
   size_t b_length = strlen(b);
-  int d = (int)(GPR_SLICE_LENGTH(a) - b_length);
+  ssize_t d = (ssize_t)(GPR_SLICE_LENGTH(a) - b_length);
   if (d != 0) return d;
   return memcmp(GPR_SLICE_START_PTR(a), b, b_length);
 }