diff --git a/utils/mapnik-index/build.py b/utils/mapnik-index/build.py
index 39bc00eb5..341c4b8d7 100644
--- a/utils/mapnik-index/build.py
+++ b/utils/mapnik-index/build.py
@@ -41,6 +41,8 @@ headers = env['CPPPATH']
 boost_program_options = 'boost_program_options%s' % env['BOOST_APPEND']
 boost_system = 'boost_system%s' % env['BOOST_APPEND']
 libraries =  [env['MAPNIK_NAME'], boost_program_options, boost_system]
+# need on linux: https://github.com/mapnik/mapnik/issues/3145
+libraries.append(env['ICU_LIB_NAME'])
 libraries.append('mapnik-json')
 libraries.append('mapnik-wkt')