diff --git a/include/polarssl/debug.h b/include/polarssl/debug.h
index 935a2fc..7335ad3 100644
--- a/include/polarssl/debug.h
+++ b/include/polarssl/debug.h
@@ -102,7 +102,7 @@
 #if defined(POLARSSL_X509_CRT_PARSE_C)
 void debug_print_crt( const ssl_context *ssl, int level,
                       const char *file, int line,
-                      const char *text, const x509_cert *crt );
+                      const char *text, const x509_crt *crt );
 #endif
 
 #ifdef __cplusplus