diff --git a/viper.go b/viper.go
index a2633b0..2e1639f 100644
--- a/viper.go
+++ b/viper.go
@@ -926,6 +926,9 @@ func (v *Viper) Set(key string, value interface{}) {
 func ReadInConfig() error { return v.ReadInConfig() }
 func (v *Viper) ReadInConfig() error {
 	jww.INFO.Println("Attempting to read in config file")
+	if v.getConfigFile() == "" {
+		return ConfigFileNotFoundError{v.configName, fmt.Sprintf("%s", v.configPaths)}
+	}
 	if !stringInSlice(v.getConfigType(), SupportedExts) {
 		return UnsupportedConfigError(v.getConfigType())
 	}
diff --git a/viper_test.go b/viper_test.go
index 858caff..7372ef7 100644
--- a/viper_test.go
+++ b/viper_test.go
@@ -738,7 +738,7 @@ func TestWrongDirsSearchNotFound(t *testing.T) {
 	v.AddConfigPath(`thispathaintthere`)
 
 	err := v.ReadInConfig()
-	assert.Equal(t, reflect.TypeOf(UnsupportedConfigError("")), reflect.TypeOf(err))
+	assert.Equal(t, reflect.TypeOf(ConfigFileNotFoundError{}), reflect.TypeOf(err))
 
 	// Even though config did not load and the error might have
 	// been ignored by the client, the default still loads