1 files changed, 1 insertions, 1 deletions
diff --git a/src/core/support/alloc.c b/src/core/support/alloc.c
index a19a0141d4..d2ed82e771 100644
--- a/src/core/support/alloc.c
+++ b/src/core/support/alloc.c
@@ -55,7 +55,7 @@ void *gpr_realloc(void *p, size_t size) {
 }
 
 void *gpr_malloc_aligned(size_t size, size_t alignment_log) {
-  size_t alignment = 1 << alignment_log;
+  size_t alignment = ((size_t)1) << alignment_log;
   size_t extra = alignment - 1 + sizeof(void *);
   void *p = gpr_malloc(size + extra);
   void **ret = (void **)(((gpr_uintptr)p + extra) & ~(alignment - 1));