diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index f275df53f..d15edecda 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -34,6 +34,7 @@ add_executable(mapnik-test-unit
     unit/datasource/geobuf.cpp
     unit/datasource/geojson.cpp
     unit/datasource/memory.cpp
+    ../plugins/input/ogr/ogr_utils.cpp
     unit/datasource/ogr.cpp
     unit/datasource/postgis.cpp
     unit/datasource/shapeindex.cpp