diff --git a/src/main.c b/src/main.c
index 6b19bbe..617c7c1 100644
--- a/src/main.c
+++ b/src/main.c
@@ -147,7 +147,7 @@ int main(int argc, const char * argv[])
 	el_set(el, EL_EDITOR, "emacs");
 	el_set(el, EL_HIST, history, hist);
 	el_set(el, EL_ADDFN, "tab-complete", "Tab completion", v6502_completeDebuggerCommand);
-	el_set(el, EL_BIND, "\t", "tab-complete");
+	el_set(el, EL_BIND, "\t", "tab-complete", NULL);
 	
 	char *command = NULL;
 	while (!feof(stdin)) {