diff --git a/CMakeLists.txt b/CMakeLists.txt
index 521a2d51..f6403fa0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -176,6 +176,7 @@ if (ISLE_BUILD_LIB)
     LEGO1/towtrackmissionstate.cpp
     LEGO1/mxstringvariable.cpp
     LEGO1/legobackgroundcolor.cpp
+    LEGO1/legoutil.cpp
   )
 
   # Link libraries