diff --git a/validate/validate.go b/validate/validate.go
index fbe6557a7..2be057521 100644
--- a/validate/validate.go
+++ b/validate/validate.go
@@ -153,14 +153,7 @@ func (v *Validator) CheckPlatform() (msgs []string) {
 	logrus.Debugf("check platform")
 
 	validCombins := map[string][]string{
-		"android":   {"arm"},
-		"darwin":    {"386", "amd64", "arm", "arm64"},
-		"dragonfly": {"amd64"},
-		"freebsd":   {"386", "amd64", "arm"},
 		"linux":     {"386", "amd64", "arm", "arm64", "ppc64", "ppc64le", "mips64", "mips64le", "s390x"},
-		"netbsd":    {"386", "amd64", "arm"},
-		"openbsd":   {"386", "amd64", "arm"},
-		"plan9":     {"386", "amd64"},
 		"solaris":   {"amd64"},
 		"windows":   {"386", "amd64"}}
 	platform := v.spec.Platform