diff --git a/altsrc/json_source_context.go b/altsrc/json_source_context.go
index 0215ced..6e7bf11 100644
--- a/altsrc/json_source_context.go
+++ b/altsrc/json_source_context.go
@@ -19,9 +19,9 @@ func NewJSONSourceFromFlagFunc(flag string) func(c *cli.Context) (InputSourceCon
 	return func(context *cli.Context) (InputSourceContext, error) {
 		if context.IsSet(flag) {
 			return NewJSONSourceFromFile(context.String(flag))
-		} else {
-			return defaultInputSource()
 		}
+
+		return defaultInputSource()
 	}
 }
 
diff --git a/altsrc/toml_file_loader.go b/altsrc/toml_file_loader.go
index 5c7914a..9b86ee1 100644
--- a/altsrc/toml_file_loader.go
+++ b/altsrc/toml_file_loader.go
@@ -90,9 +90,9 @@ func NewTomlSourceFromFlagFunc(flagFileName string) func(context *cli.Context) (
 		if context.IsSet(flagFileName) {
 			filePath := context.String(flagFileName)
 			return NewTomlSourceFromFile(filePath)
-		} else {
-			return defaultInputSource()
 		}
+
+		return defaultInputSource()
 	}
 }
 
diff --git a/altsrc/yaml_file_loader.go b/altsrc/yaml_file_loader.go
index 7c5ea19..a49df56 100644
--- a/altsrc/yaml_file_loader.go
+++ b/altsrc/yaml_file_loader.go
@@ -36,9 +36,9 @@ func NewYamlSourceFromFlagFunc(flagFileName string) func(context *cli.Context) (
 		if context.IsSet(flagFileName) {
 			filePath := context.String(flagFileName)
 			return NewYamlSourceFromFile(filePath)
-		} else {
-			return defaultInputSource()
 		}
+
+		return defaultInputSource()
 	}
 }