diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1c609757..9ddb007e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -365,6 +365,7 @@ if(LOVR_ENABLE_DATA)
     src/modules/data/modelData.c
     src/modules/data/modelData_gltf.c
     src/modules/data/modelData_obj.c
+    src/modules/data/modelData_stl.c
     src/modules/data/rasterizer.c
     src/modules/data/sound.c
     src/api/l_data.c