diff --git a/include/tinycrypt/ecc.h b/include/tinycrypt/ecc.h
index 59a7a89..50d93d2 100644
--- a/include/tinycrypt/ecc.h
+++ b/include/tinycrypt/ecc.h
@@ -476,8 +476,7 @@
  * @param max_words IN -- number of words
  * @return number of bits in given vli
  */
-bitcount_t uECC_vli_numBits(const uECC_word_t *vli, 
-			    const wordcount_t max_words);
+bitcount_t uECC_vli_numBits(const uECC_word_t *vli);
 
 /*
  * @brief Erases (set to 0) vli