diff --git a/include/tinycrypt/ecc_dsa.h b/include/tinycrypt/ecc_dsa.h
index 55b9d43..5985c7f 100644
--- a/include/tinycrypt/ecc_dsa.h
+++ b/include/tinycrypt/ecc_dsa.h
@@ -109,7 +109,7 @@
  * attack.
  */
 int uECC_sign(const uint8_t *p_private_key, const uint8_t *p_message_hash,
-	      unsigned p_hash_size, uint8_t *p_signature, uECC_Curve curve);
+	      unsigned p_hash_size, uint8_t *p_signature);
 
 #ifdef ENABLE_TESTS
 /*
@@ -117,8 +117,7 @@
  * Refer to uECC_sign() function for real applications.
  */
 int uECC_sign_with_k(const uint8_t *private_key, const uint8_t *message_hash,
-		     unsigned int hash_size, uECC_word_t *k, uint8_t *signature,
-		     uECC_Curve curve);
+		     unsigned int hash_size, uECC_word_t *k, uint8_t *signature)
 #endif
 
 /**
@@ -136,7 +135,7 @@
  * the signature values (hash_size and signature).
  */
 int uECC_verify(const uint8_t *p_public_key, const uint8_t *p_message_hash,
-		unsigned int p_hash_size, const uint8_t *p_signature, uECC_Curve curve);
+		unsigned int p_hash_size, const uint8_t *p_signature);
 
 #ifdef __cplusplus
 }