diff --git a/srcpkgs/mu/template b/srcpkgs/mu/template
index 715e7ba431c..660a8923b79 100644
--- a/srcpkgs/mu/template
+++ b/srcpkgs/mu/template
@@ -13,5 +13,6 @@ distfiles="https://github.com/djcb/mu/archive/v${version}.tar.gz"
 checksum=4ae4ca7f433dcfc6dfd85a41873914c1bda5c43de02ad2a030cd449f84d629cb
 
 pre_configure() {
+	sed -i 's,-I${prefix}/include,,' contrib/Makefile.am
 	autoreconf -fi
 }