diff --git a/include/stringop.h b/include/stringop.h
index 49bfa771d..febbbaba5 100644
--- a/include/stringop.h
+++ b/include/stringop.h
@@ -33,5 +33,4 @@ char *cmdsep(char **stringp, const char *delim);
 // Split string into 2 by delim, handle quotes
 char *argsep(char **stringp, const char *delim);
 
-char *strdup(const char *);
 #endif
diff --git a/sway/stringop.c b/sway/stringop.c
index 31a036c35..8d6cac2fd 100644
--- a/sway/stringop.c
+++ b/sway/stringop.c
@@ -362,12 +362,3 @@ char *argsep(char **stringp, const char *delim) {
 	found:
 	return start;
 }
-
-char *strdup(const char *str) {
-	char *dup = malloc(strlen(str) + 1);
-	if (dup) {
-		strcpy(dup, str);
-	}
-	return dup;
-}
-
diff --git a/wayland/client.c b/wayland/client.c
index b5e5b51a3..5c5c07519 100644
--- a/wayland/client.c
+++ b/wayland/client.c
@@ -104,8 +104,8 @@ static int create_pool_file(size_t size) {
 }
 
 static void buffer_release(void *data, struct wl_buffer *buffer) {
-    struct client_state *state = data;
-    state->busy = false;
+	struct client_state *state = data;
+	state->busy = false;
 	sway_log(L_INFO, "buffer release");
 }
 
@@ -138,9 +138,9 @@ struct buffer *create_buffer(struct client_state *state,
 
 static void frame_callback(void *data, struct wl_callback *callback, uint32_t time) {
 	sway_log(L_INFO, "frame callback");
-    struct client_state *state = data;
-    wl_callback_destroy(callback);
-    state->frame_cb = NULL;
+	struct client_state *state = data;
+	wl_callback_destroy(callback);
+	state->frame_cb = NULL;
 }
 
 static const struct wl_callback_listener listener = {
@@ -177,7 +177,7 @@ struct client_state *client_setup(void) {
 
 int client_prerender(struct client_state *state) {
 	wl_display_dispatch_pending(state->display);
-    wl_display_flush(state->display);
+	wl_display_flush(state->display);
 	return 1;
 }