diff --git a/sway/commands/bind.c b/sway/commands/bind.c
index 32d4f891..15373d5a 100644
--- a/sway/commands/bind.c
+++ b/sway/commands/bind.c
@@ -367,7 +367,7 @@ static struct cmd_results *cmd_bindsym_or_bindcode(int argc, char **argv,
 			}
 		} else if (strcmp("--exclude-titlebar", argv[0]) == 0) {
 			exclude_titlebar = true;
-		} else if (has_prefix("--input-device=", argv[0])) {
+		} else if (has_prefix(argv[0], "--input-device=")) {
 			free(binding->input);
 			binding->input = strdup(argv[0] + strlen("--input-device="));
 			strip_quotes(binding->input);
diff --git a/sway/commands/gesture.c b/sway/commands/gesture.c
index e63b7ac6..8dff29a3 100644
--- a/sway/commands/gesture.c
+++ b/sway/commands/gesture.c
@@ -121,7 +121,7 @@ static struct cmd_results *cmd_bind_or_unbind_gesture(int argc, char **argv, boo
 			binding->flags |= BINDING_EXACT;
 		} else if (strcmp("--no-warn", argv[0]) == 0) {
 			warn = false;
-		} else if (has_prefix("--input-device=", argv[0])) {
+		} else if (has_prefix(argv[0], "--input-device=")) {
 			free(binding->input);
 			binding->input = strdup(argv[0] + strlen("--input-device="));
 		} else {
diff --git a/swaybar/ipc.c b/swaybar/ipc.c
index f651f035..68d8dd32 100644
--- a/swaybar/ipc.c
+++ b/swaybar/ipc.c
@@ -46,7 +46,7 @@ void ipc_send_workspace_command(struct swaybar *bar, const char *ws) {
 
 char *parse_font(const char *font) {
 	char *new_font = NULL;
-	if (has_prefix("pango:", font)) {
+	if (has_prefix(font, "pango:")) {
 		font += strlen("pango:");
 	}
 	new_font = strdup(font);