diff --git a/net/vmnet-bridged.m b/net/vmnet-bridged.m
index 46d2282863..76a28abe79 100644
--- a/net/vmnet-bridged.m
+++ b/net/vmnet-bridged.m
@@ -37,7 +37,7 @@ done:
 }
 
 
-static char* get_valid_ifnames()
+static char* get_valid_ifnames(void)
 {
     xpc_object_t shared_if_list = vmnet_copy_shared_interface_list();
     __block char *if_list = NULL;
diff --git a/ui/cocoa.m b/ui/cocoa.m
index 168170a8a6..0c2153d17c 100644
--- a/ui/cocoa.m
+++ b/ui/cocoa.m
@@ -1934,7 +1934,7 @@ static void *call_qemu_main(void *opaque)
     exit(status);
 }
 
-static int cocoa_main()
+static int cocoa_main(void)
 {
     QemuThread thread;