diff --git a/core/os/os_freestanding.odin b/core/os/os_freestanding.odin
index 55ce1d12e..c908e3738 100644
--- a/core/os/os_freestanding.odin
+++ b/core/os/os_freestanding.odin
@@ -1,4 +1,4 @@
-//+freestanding
+//+build freestanding
 package os
 
-#panic("package os does not support a freestanding target")
\ No newline at end of file
+#panic("package os does not support a freestanding target")