diff --git a/programs/test/query_config.h b/programs/test/query_config.h
index 290100f..ade73d0 100644
--- a/programs/test/query_config.h
+++ b/programs/test/query_config.h
@@ -33,7 +33,7 @@
  *                  which is automatically generated by
  *                  `scripts/generate_query_config.pl`.
  */
-int query_config( const char *config );
+int query_config(const char *config);
 
 /** List all enabled configuration symbols
  *
@@ -41,6 +41,6 @@
  *                  which is automatically generated by
  *                  `scripts/generate_query_config.pl`.
  */
-void list_config( void );
+void list_config(void);
 
 #endif /* MBEDTLS_PROGRAMS_TEST_QUERY_CONFIG_H */