diff --git a/deps/micro-ecc/uECC.c b/deps/micro-ecc/uECC.c
index 7fbf5bf7b..461f7133c 100644
--- a/deps/micro-ecc/uECC.c
+++ b/deps/micro-ecc/uECC.c
@@ -254,7 +254,7 @@ uECC_VLI_API bitcount_t uECC_vli_numBits(const uECC_word_t *vli, const wordcount
         digit >>= 1;
     }
 
-    return (uint8_t)(((bitcount_t)(num_digits - 1) << uECC_WORD_BITS_SHIFT) + i);
+    return (((bitcount_t)(num_digits - 1) << uECC_WORD_BITS_SHIFT) + i);
 }
 
 /* Sets dest = src. */