diff --git a/src/or/protover_rust.c b/src/or/protover_rust.c
index 27f19c5fea..0c409b1681 100644
--- a/src/or/protover_rust.c
+++ b/src/or/protover_rust.c
@@ -13,7 +13,7 @@
 #ifdef HAVE_RUST
 
 /* Define for compatibility, used in main.c */
-void protover_free_all(void) {};
+void protover_free_all(void) {}
 
 #endif