diff --git a/libgmp/Pkgfile b/libgmp/Pkgfile
index 7dc42a56..a6578f53 100644
--- a/libgmp/Pkgfile
+++ b/libgmp/Pkgfile
@@ -16,6 +16,6 @@ build() {
     make
     make DESTDIR=$PKG install
     mv $PKG/usr/include/gmp{,-64}.h
-    cp $SRC/gmp.h $PKG/usr/include/
+    install -m 0644 $SRC/gmp.h $PKG/usr/include/
     rm -r $PKG/usr/share
 }