diff --git a/GNUmakefile b/GNUmakefile
index e149677c..296a6893 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -32,13 +32,13 @@ build: ./cmd/vuls/main.go pretest fmt
 b: ./cmd/vuls/main.go 
 	$(GO) build -a -ldflags "$(LDFLAGS)" -o vuls ./cmd/vuls
 
-install: ./cmd/vuls/main.go pretest fmt
+install: ./cmd/vuls/main.go
 	$(GO) install -ldflags "$(LDFLAGS)" ./cmd/vuls
 
-build-scanner: ./cmd/scanner/main.go pretest fmt
+build-scanner: ./cmd/scanner/main.go 
 	$(CGO_UNABLED) build -tags=scanner -a -ldflags "$(LDFLAGS)" -o vuls ./cmd/scanner
 
-install-scanner: ./cmd/scanner/main.go pretest fmt
+install-scanner: ./cmd/scanner/main.go 
 	$(CGO_UNABLED) install -tags=scanner -ldflags "$(LDFLAGS)" ./cmd/scanner
 
 lint:
diff --git a/detector/github.go b/detector/github.go
index cf8d61c2..23b83d0c 100644
--- a/detector/github.go
+++ b/detector/github.go
@@ -1,3 +1,5 @@
+// +build !scanner
+
 package detector
 
 import (
diff --git a/detector/library.go b/detector/library.go
index 273b9aae..26d7c5e0 100644
--- a/detector/library.go
+++ b/detector/library.go
@@ -1,3 +1,5 @@
+// +build !scanner
+
 package detector
 
 import (
diff --git a/detector/util.go b/detector/util.go
index d3f149a3..0e16b875 100644
--- a/detector/util.go
+++ b/detector/util.go
@@ -1,3 +1,5 @@
+// +build !scanner
+
 package detector
 
 import (
diff --git a/detector/wordpress.go b/detector/wordpress.go
index b0211e97..672cae51 100644
--- a/detector/wordpress.go
+++ b/detector/wordpress.go
@@ -1,3 +1,5 @@
+// +build !scanner
+
 package detector
 
 import (
diff --git a/detector/wordpress_test.go b/detector/wordpress_test.go
index 99165208..d5cc1c10 100644
--- a/detector/wordpress_test.go
+++ b/detector/wordpress_test.go
@@ -1,3 +1,5 @@
+// +build !scanner
+
 package detector
 
 import (
diff --git a/gost/debian_test.go b/gost/debian_test.go
index ef41e113..638a0577 100644
--- a/gost/debian_test.go
+++ b/gost/debian_test.go
@@ -1,3 +1,5 @@
+// +build !scanner
+
 package gost
 
 import "testing"
diff --git a/gost/gost_test.go b/gost/gost_test.go
index 81608a84..9defdede 100644
--- a/gost/gost_test.go
+++ b/gost/gost_test.go
@@ -1,3 +1,5 @@
+// +build !scanner
+
 package gost
 
 import (
diff --git a/gost/redhat_test.go b/gost/redhat_test.go
index 72eb5f66..fe2f4f08 100644
--- a/gost/redhat_test.go
+++ b/gost/redhat_test.go
@@ -1,3 +1,5 @@
+// +build !scanner
+
 package gost
 
 import (
diff --git a/gost/util.go b/gost/util.go
index a3149b24..9e2043a6 100644
--- a/gost/util.go
+++ b/gost/util.go
@@ -1,3 +1,5 @@
+// +build !scanner
+
 package gost
 
 import (
diff --git a/oval/empty.go b/oval/empty.go
deleted file mode 100644
index 5df0f81b..00000000
--- a/oval/empty.go
+++ /dev/null
@@ -1 +0,0 @@
-package oval
diff --git a/scanner/base.go b/scanner/base.go
index b1f28435..a657b9dd 100644
--- a/scanner/base.go
+++ b/scanner/base.go
@@ -623,6 +623,7 @@ func (l *base) scanLibraries() (err error) {
 	return nil
 }
 
+// AnalyzeLibraries : detects libs defined in lockfile
 func AnalyzeLibraries(ctx context.Context, libFilemap map[string][]byte) (libraryScanners []models.LibraryScanner, err error) {
 	disabledAnalyzers := []analyzer.Type{
 		analyzer.TypeAlpine,