1 files changed, 1 insertions, 1 deletions

diff --git a/sway/commands/set.c b/sway/commands/set.c
index e3d08dd3..46fc6d38 100644
--- a/sway/commands/set.c
+++ b/sway/commands/set.c
@@ -30,7 +30,7 @@ struct cmd_results *cmd_set(int argc, char **argv) {
                 if (!tmp) {
                         return cmd_results_new(CMD_FAILURE, "set", "Not possible to create variable $'%s'", argv[0]);
                 }
-                snprintf(tmp, size, "$%s", argv[0]);
+                snprintf(tmp, size+1, "$%s", argv[0]);
 
                 argv[0] = tmp;
         }