diff --git a/src/unity.c b/src/unity.c
index 1fcf3f34d2cdec665e6990123c8b0ad2bea182ea..52663642e80cbe4e9868ee9234673eb16912296c 100644
--- a/src/unity.c
+++ b/src/unity.c
@@ -194,7 +194,7 @@ void UnityPrintNumberHex(const UNITY_UINT number, const char nibbles_to_print)
     while (nibbles > 0)
     {
         nibbles--;
-        nibble = (number >> (nibbles * 4)) & 0x0F;
+        nibble = (int)(number >> (nibbles * 4)) & 0x0F;
         if (nibble <= 9)
         {
             UNITY_OUTPUT_CHAR((char)('0' + nibble));