diff --git a/host.go b/host.go
index 0ee043f..068b969 100644
--- a/host.go
+++ b/host.go
@@ -231,7 +231,7 @@ func (h *Host) AutoCompleteFunction(u *message.User) func(line string, pos int,
 		posPartial := pos - len(partial)
 
 		var completed string
-		if isFirst && strings.HasPrefix(partial, "/") {
+		if isFirst && strings.HasPrefix(line, "/") {
 			// Command
 			completed = h.completeCommand(partial)
 			if completed == "/reply" {