diff --git a/libsrc/interface/CMakeLists.txt b/libsrc/interface/CMakeLists.txt
index d8d935a1..bc1bc2f3 100644
--- a/libsrc/interface/CMakeLists.txt
+++ b/libsrc/interface/CMakeLists.txt
@@ -7,7 +7,7 @@ add_library(interface ${NG_LIB_TYPE}
         wuchemnitz.cpp writegmsh2.cpp writeOpenFOAM15x.cpp 
         )
 
-target_link_libraries(interface mesh csg geom2d visual)
+target_link_libraries(interface mesh csg geom2d stl visual)
 
 if(NOT WIN32)
   install( TARGETS interface ${NG_INSTALL_DIR})
diff --git a/nglib/CMakeLists.txt b/nglib/CMakeLists.txt
index 3dcbe693..8fa7444b 100644
--- a/nglib/CMakeLists.txt
+++ b/nglib/CMakeLists.txt
@@ -13,6 +13,7 @@ if(WIN32)
        )
        if(USE_GUI)
            set(nglib_objects ${nglib_objects}
+	       $<TARGET_OBJECTS:stlvis>
 	       $<TARGET_OBJECTS:geom2dvis>
                $<TARGET_OBJECTS:csgvis>
            )
@@ -21,9 +22,9 @@ endif(WIN32)
 
 add_library(nglib SHARED nglib.cpp ${nglib_objects})
 if(NOT WIN32)
-      target_link_libraries( nglib PUBLIC mesh interface geom2d csg visual)
+      target_link_libraries( nglib PUBLIC mesh interface geom2d csg stl visual)
       if(USE_GUI)
-          target_link_libraries( nglib PUBLIC geom2dvis csgvis )
+          target_link_libraries( nglib PUBLIC stlvis geom2dvis csgvis )
       endif(USE_GUI)
 endif(NOT WIN32)