diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h
index e4b8882..c3ef438 100644
--- a/include/mbedtls/x509_crt.h
+++ b/include/mbedtls/x509_crt.h
@@ -864,11 +864,8 @@
     return( 0 );
 }
 
-static inline void mbedtls_x509_crt_frame_release(
-    mbedtls_x509_crt const *crt,
-    mbedtls_x509_crt_frame *frame )
+static inline void mbedtls_x509_crt_frame_release( mbedtls_x509_crt const *crt )
 {
-    ((void) frame);
     ((void) crt);
 
 #if defined(MBEDTLS_THREADING_C)
@@ -902,10 +899,8 @@
     return( 0 );
 }
 
-static inline void mbedtls_x509_crt_pk_release( mbedtls_x509_crt const *crt,
-                                                mbedtls_pk_context *pk )
+static inline void mbedtls_x509_crt_pk_release( mbedtls_x509_crt const *crt )
 {
-    ((void) pk);
     ((void) crt);
 
 #if defined(MBEDTLS_THREADING_C)