diff --git a/src/pipewire/private.h b/src/pipewire/private.h
index f61cc24f6..8d23ae7c3 100644
--- a/src/pipewire/private.h
+++ b/src/pipewire/private.h
@@ -1353,7 +1353,7 @@ bool pw_log_is_default(void);
 void pw_log_init(void);
 void pw_log_deinit(void);
 
-void pw_random_init();
+void pw_random_init(void);
 
 void pw_settings_init(struct pw_context *context);
 int pw_settings_expose(struct pw_context *context);
diff --git a/src/pipewire/utils.c b/src/pipewire/utils.c
index 76b9693b2..9c99ce06d 100644
--- a/src/pipewire/utils.c
+++ b/src/pipewire/utils.c
@@ -227,7 +227,7 @@ void pw_random(void *buf, size_t buflen)
 	}
 }
 
-void pw_random_init()
+void pw_random_init(void)
 {
 	unsigned int seed;
 	if (pw_getrandom(&seed, sizeof(seed), 0) < 0) {