diff --git a/extra/gcompat/build b/extra/gcompat/build
index 2b9b88d2..8ebd4c8d 100755
--- a/extra/gcompat/build
+++ b/extra/gcompat/build
@@ -1,6 +1,7 @@
 #!/bin/sh -e
 
-sed -i 's|/lib|/usr/lib|g' Makefile
+sed 's|/lib|/usr/lib|g' Makefile > _
+mv -f _ Makefile
 
 make LINKER_PATH=/usr/lib/ld-musl-x86_64.so.1
 make DESTDIR="$1" install