diff --git a/IDE/IAR/keytools/keygen.exe b/IDE/IAR/keytools/keygen.exe
index 0d4d27f09..09cad8cea 100644
Binary files a/IDE/IAR/keytools/keygen.exe and b/IDE/IAR/keytools/keygen.exe differ
diff --git a/IDE/IAR/keytools/sign.exe b/IDE/IAR/keytools/sign.exe
index ae9600c98..83b36c7e7 100644
Binary files a/IDE/IAR/keytools/sign.exe and b/IDE/IAR/keytools/sign.exe differ
diff --git a/tools/keytools/sign.c b/tools/keytools/sign.c
index 72d2778e5..bb927755a 100644
--- a/tools/keytools/sign.c
+++ b/tools/keytools/sign.c
@@ -1405,7 +1405,7 @@ static int make_header_ex(int is_diff, uint8_t *pubkey, uint32_t pubkey_sz,
         if (CMD.policy_sign) {
             /* Add policy signature to header */
             header_append_tag(header, &header_idx, HDR_POLICY_SIGNATURE,
-                CMD.policy_sz + sizeof(uint32_t), policy);
+                CMD.policy_sz + (uint16_t)sizeof(uint32_t), policy);
         }
     } /* end if(sign != NO_SIGN) */