diff --git a/viper.go b/viper.go
index 178a6eb..f60ce75 100644
--- a/viper.go
+++ b/viper.go
@@ -961,6 +961,11 @@ func (v *Viper) find(lcaseKey string) interface{} {
 			s = strings.TrimSuffix(s, "]")
 			res, _ := readAsCSV(s)
 			return res
+		case "intSlice":
+			s := strings.TrimPrefix(flag.ValueString(), "[")
+			s = strings.TrimSuffix(s, "]")
+			res, _ := readAsCSV(s)
+			return res
 		default:
 			return flag.ValueString()
 		}