diff --git a/srcpkgs/mpfr/template b/srcpkgs/mpfr/template
index e25190d1a0..eac0a4b5c1 100644
--- a/srcpkgs/mpfr/template
+++ b/srcpkgs/mpfr/template
@@ -12,6 +12,11 @@ homepage="http://www.mpfr.org"
 distfiles="${homepage}/mpfr-current/$pkgname-$version.tar.bz2"
 checksum=79c73f60af010a30a5c27a955a1d2d01ba095b72537dab0ecaad57f5a7bb1b6b
 
+if [ -z "$IN_CHROOT" ]; then
+	CPPFLAGS="-I$XBPS_MASTERDIR/usr/include"
+	LDFLAGS="-L$XBPS_MASTERDIR/usr/lib"
+fi
+
 mpfr-devel_package() {
 	depends="gmp-devel mpfr>=$version"
 	short_desc+=" -- development files"