diff --git a/include/polarssl/debug.h b/include/polarssl/debug.h
index fdd3627..935a2fc 100644
--- a/include/polarssl/debug.h
+++ b/include/polarssl/debug.h
@@ -54,7 +54,7 @@
     debug_print_ecp( ssl, level, __FILE__, __LINE__, text, X );
 #endif
 
-#if defined(POLARSSL_X509_PARSE_C)
+#if defined(POLARSSL_X509_CRT_PARSE_C)
 #define SSL_DEBUG_CRT( level, text, crt )                \
     debug_print_crt( ssl, level, __FILE__, __LINE__, text, crt );
 #endif
@@ -99,7 +99,7 @@
                       const char *text, const ecp_point *X );
 #endif
 
-#if defined(POLARSSL_X509_PARSE_C)
+#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 );