1 files changed, 4 insertions, 1 deletions

diff --git a/sway/commands.c b/sway/commands.c
index f6326038..fc3444ee 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -169,7 +169,10 @@ static struct cmd_results *cmd_assign(int argc, char **argv) {
 
         char *criteria = *argv++;
 
-        if (strncmp(*argv, "→", 1) == 0) {
+        if (strncmp(*argv, "→", strlen("→")) == 0) {
+                if (argc < 3) {
+                        return cmd_results_new(CMD_INVALID, "assign", "Missing workspace");
+                }
                 argv++;
         }