diff --git a/test/test-ipc-send-recv.c b/test/test-ipc-send-recv.c
index 133ae901..5826e9e6 100644
--- a/test/test-ipc-send-recv.c
+++ b/test/test-ipc-send-recv.c
@@ -335,7 +335,7 @@ static void read_cb(uv_stream_t* handle,
   } while (uv_pipe_pending_count(pipe) > 0);
 }
 
-static void send_recv_start() {
+static void send_recv_start(void) {
   int r;
   ASSERT(1 == uv_is_readable((uv_stream_t*)&ctx2.channel));
   ASSERT(1 == uv_is_writable((uv_stream_t*)&ctx2.channel));
diff --git a/test/test-process-title.c b/test/test-process-title.c
index 5d5ede9d..f7a0bf61 100644
--- a/test/test-process-title.c
+++ b/test/test-process-title.c
@@ -41,7 +41,7 @@ static void set_title(const char* title) {
 }
 
 
-static void uv_get_process_title_edge_cases() {
+static void uv_get_process_title_edge_cases(void) {
   char buffer[512];
   int r;