diff --git a/srcpkgs/openttd/template b/srcpkgs/openttd/template
index c9731301b0c..8c06e3bdaa7 100644
--- a/srcpkgs/openttd/template
+++ b/srcpkgs/openttd/template
@@ -1,7 +1,7 @@
 # Template file for 'openttd'
 pkgname=openttd
 version=1.8.0
-revision=1
+revision=2
 _gfxver=0.5.4
 _sfxver=0.2.3
 build_style=gnu-configure
@@ -25,6 +25,8 @@ checksum="
  3574745ac0c138bae53b56972591db8d778ad9faffd51deae37a48a563e71662
 "
 
+CXXFLAGS=' -DU_USING_ICU_NAMESPACE=1'
+
 post_extract() {
 	cd ${XBPS_BUILDDIR}
 	tar xf opengfx-${_gfxver}.tar