diff --git a/lib/std/zig/system.zig b/lib/std/zig/system.zig
index 567d03b59f3f55c72451278ad0cc44563d5337f5..5930a32533428a8c4718fd165de4ac4078ba4780 100644
--- a/lib/std/zig/system.zig
+++ b/lib/std/zig/system.zig
@@ -1203,6 +1203,9 @@ test {
     _ = NativePaths;
 
     _ = darwin;
+    _ = freebsd;
     _ = linux;
+    _ = netbsd;
+    _ = openbsd;
     _ = windows;
 }