diff --git a/src/net/lookup_test.go b/src/net/lookup_test.go
index fa1a706c78..0868b1f083 100644
--- a/src/net/lookup_test.go
+++ b/src/net/lookup_test.go
@@ -74,7 +74,7 @@ func TestLookupGoogleSRV(t *testing.T) {
 	t.Parallel()
 	mustHaveExternalNetwork(t)
 
-	if iOS() {
+	if runtime.GOOS == "ios" {
 		t.Skip("no resolv.conf on iOS")
 	}
 
@@ -123,7 +123,7 @@ func TestLookupGmailMX(t *testing.T) {
 	t.Parallel()
 	mustHaveExternalNetwork(t)
 
-	if iOS() {
+	if runtime.GOOS == "ios" {
 		t.Skip("no resolv.conf on iOS")
 	}
 
@@ -169,7 +169,7 @@ func TestLookupGmailNS(t *testing.T) {
 	t.Parallel()
 	mustHaveExternalNetwork(t)
 
-	if iOS() {
+	if runtime.GOOS == "ios" {
 		t.Skip("no resolv.conf on iOS")
 	}
 
@@ -218,7 +218,7 @@ func TestLookupGmailTXT(t *testing.T) {
 	t.Parallel()
 	mustHaveExternalNetwork(t)
 
-	if iOS() {
+	if runtime.GOOS == "ios" {
 		t.Skip("no resolv.conf on iOS")
 	}
 
@@ -643,7 +643,7 @@ func TestLookupDotsWithRemoteSource(t *testing.T) {
 		t.Skip("IPv4 is required")
 	}
 
-	if iOS() {
+	if runtime.GOOS == "ios" {
 		t.Skip("no resolv.conf on iOS")
 	}
 
diff --git a/src/net/platform_test.go b/src/net/platform_test.go
index c522ba2829..12be367b1a 100644
--- a/src/net/platform_test.go
+++ b/src/net/platform_test.go
@@ -48,15 +48,11 @@ func testableNetwork(network string) bool {
 		}
 	case "unix", "unixgram":
 		switch runtime.GOOS {
-		case "android", "plan9", "windows":
+		case "android", "ios", "plan9", "windows":
 			return false
 		case "aix":
 			return unixEnabledOnAIX
 		}
-		// iOS does not support unix, unixgram.
-		if iOS() {
-			return false
-		}
 	case "unixpacket":
 		switch runtime.GOOS {
 		case "aix", "android", "darwin", "ios", "plan9", "windows":
@@ -81,10 +77,6 @@ func testableNetwork(network string) bool {
 	return true
 }
 
-func iOS() bool {
-	return runtime.GOOS == "ios"
-}
-
 // testableAddress reports whether address of network is testable on
 // the current platform configuration.
 func testableAddress(network, address string) bool {