diff --git a/lib/builder.go b/lib/builder.go
index 0181812..857a2bd 100644
--- a/lib/builder.go
+++ b/lib/builder.go
@@ -53,6 +53,9 @@ func (b *builder) Build() error {
 	command.Dir = b.dir
 
 	output, err := command.CombinedOutput()
+	if err != nil {
+		return err
+	}
 
 	if command.ProcessState.Success() {
 		b.errors = ""
@@ -64,5 +67,5 @@ func (b *builder) Build() error {
 		return fmt.Errorf(b.errors)
 	}
 
-	return err
+	return nil
 }