diff --git a/src/server/gdb_server.c b/src/server/gdb_server.c
index 389304755..ca9da1515 100644
--- a/src/server/gdb_server.c
+++ b/src/server/gdb_server.c
@@ -112,8 +112,6 @@ static char *gdb_port_next;
 static void gdb_log_callback(void *priv, const char *file, unsigned line,
 		const char *function, const char *string);
 
-static void gdb_sig_halted(struct connection *connection);
-
 /* number of gdb connections, mainly to suppress gdb related debugging spam
  * in helper/log.c when no gdb connections are actually active */
 int gdb_actual_connections;