1 files changed, 2 insertions, 1 deletions
diff --git a/src/core/security/jwt_verifier.c b/src/core/security/jwt_verifier.c
index 9de8482025..eca903d930 100644
--- a/src/core/security/jwt_verifier.c
+++ b/src/core/security/jwt_verifier.c
@@ -38,6 +38,7 @@
 
 #include "src/core/httpcli/httpcli.h"
 #include "src/core/security/base64.h"
+#include "src/core/tsi/ssl_types.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -443,7 +444,7 @@ static BIGNUM *bignum_from_base64(const char *b64) {
     return NULL;
   }
   result =
-      BN_bin2bn(GPR_SLICE_START_PTR(bin), (int)GPR_SLICE_LENGTH(bin), NULL);
+      BN_bin2bn(GPR_SLICE_START_PTR(bin), TSI_SIZE_AS_SIZE(GPR_SLICE_LENGTH(bin)), NULL);
   gpr_slice_unref(bin);
   return result;
 }