diff --git a/lib/common.go b/lib/common.go
index 5ec3b95..b6b82ae 100644
--- a/lib/common.go
+++ b/lib/common.go
@@ -51,6 +51,9 @@ func BuildURI(rawuri, rawpath string) string {
 }
 
 func HasCommand(s, prefix, cmd string) bool {
+	s = strings.TrimSpace(s)
+
+	// a command cannot be less than two characters e.g. !x
 	if len(s) < 2 {
 		return false
 	}