diff --git a/include/openssl/bn.h b/include/openssl/bn.h
index f77b4b90a86b72c91e1d5646844efe4fb8f60bcb..93c8fe962e7a0f75d460251ea3d85b4a4c71eb9e 100644
--- a/include/openssl/bn.h
+++ b/include/openssl/bn.h
@@ -186,7 +186,7 @@ int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx);
  */
 void BN_set_negative(BIGNUM *b, int n);
 /** BN_is_negative returns 1 if the BIGNUM is negative
- * \param  a  pointer to the BIGNUM object
+ * \param  b  pointer to the BIGNUM object
  * \return 1 if a < 0 and 0 otherwise
  */
 int BN_is_negative(const BIGNUM *b);
diff --git a/include/openssl/ec.h b/include/openssl/ec.h
index 7978d96a34c693328cd0743c693eb5b19ed5b1b4..273aea0432104f33eac02dc0d8fedf1c7b1b76eb 100644
--- a/include/openssl/ec.h
+++ b/include/openssl/ec.h
@@ -774,7 +774,7 @@ EC_KEY *EC_KEY_dup(const EC_KEY *src);
 int EC_KEY_up_ref(EC_KEY *key);
 
 /** Returns the ENGINE object of a EC_KEY object
- *  \param  key  EC_KEY object
+ *  \param  eckey  EC_KEY object
  *  \return the ENGINE object (possibly NULL).
  */
 ENGINE *EC_KEY_get0_engine(const EC_KEY *eckey);