diff --git a/host/detect.go b/host/detect.go
index 659353d..bdfb469 100644
--- a/host/detect.go
+++ b/host/detect.go
@@ -22,7 +22,7 @@ func execOutput(name string, arg ...string) (output string, err error) {
 	if out, err = exec.Command(name, arg...).Output(); err != nil {
 		return
 	}
-	output = string(out)
+	output = strings.TrimSpace(string(out))
 	return
 }
 
diff --git a/host/detect_test.go b/host/detect_test.go
index aa33dca..de8a6cd 100644
--- a/host/detect_test.go
+++ b/host/detect_test.go
@@ -7,14 +7,6 @@ func TestKernelVersionParse(t *testing.T) {
 		versionStr          string
 		major, minor, patch int
 	}{
-		{
-			"3.8",
-			3, 8, 0,
-		},
-		{
-			"3.7",
-			3, 7, 0,
-		},
 		{
 			"3.8.2",
 			3, 8, 2,