1 files changed, 10 insertions, 5 deletions

diff --git a/sway/commands/swaynag_command.c b/sway/commands/swaynag_command.c
index c57a80a6..6c86f1a7 100644
--- a/sway/commands/swaynag_command.c
+++ b/sway/commands/swaynag_command.c
@@ -9,12 +9,17 @@ struct cmd_results *cmd_swaynag_command(int argc, char **argv) {
                 return error;
         }
 
-        if (config->swaynag_command) {
-                free(config->swaynag_command);
+        free(config->swaynag_command);
+        config->swaynag_command = NULL;
+
+        char *new_command = join_args(argv, argc);
+        if (strcmp(new_command, "-") != 0) {
+                config->swaybg_command = new_command;
+                wlr_log(WLR_DEBUG, "Using custom swaynag command: %s",
+                                config->swaynag_command);
+        } else {
+                free(new_command);
         }
-        config->swaynag_command = join_args(argv, argc);
-        wlr_log(WLR_DEBUG, "Using custom swaynag command: %s",
-                        config->swaynag_command);
 
         return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }