diff --git a/mockgen/model/model.go b/mockgen/model/model.go
index 94d7f4ba..0fa4a2c8 100644
--- a/mockgen/model/model.go
+++ b/mockgen/model/model.go
@@ -413,9 +413,15 @@ func typeFromType(t reflect.Type) (Type, error) {
 	}
 
 	if imp := t.PkgPath(); imp != "" {
+		tp := t.Name()
+		if l, r := strings.Index(tp, "["), strings.Index(tp, "]"); l != -1 && r != -1 {
+			content := tp[l+1 : r]
+			sp := strings.Split(content, "/")
+			tp = tp[:l+1] + sp[len(sp)-1] + tp[r:]
+		}
 		return &NamedType{
 			Package: impPath(imp),
-			Type:    t.Name(),
+			Type:    tp,
 		}, nil
 	}