diff --git a/internal/rosa/package/gnu.az b/internal/rosa/package/gnu.az
index 49b8a933..39c6f8b4 100644
--- a/internal/rosa/package/gnu.az
+++ b/internal/rosa/package/gnu.az
@@ -155,6 +155,13 @@ package sed {
 		compress = gzip;
 	};
 
+	writable = true;
+	early = `
+test_disable() { chmod +w "$2" && echo "$1" > "$2"; }
+
+test_disable '#!/bin/sh' testsuite/read-error-stale-errno.sh
+`;
+
 	exec = make {};
 
 	inputs = [