diff --git a/src/klayout.pri b/src/klayout.pri
index c09f225ce..fd1a3eb91 100644
--- a/src/klayout.pri
+++ b/src/klayout.pri
@@ -2,6 +2,7 @@
 TL_INC = $$PWD/tl/tl
 DB_INC = $$PWD/db/db
 DRC_INC = $$PWD/drc/drc
+LVS_INC = $$PWD/lvs/lvs
 EDT_INC = $$PWD/edt/edt
 EXT_INC = $$PWD/ext/ext
 GSI_INC = $$PWD/gsi/gsi
diff --git a/src/klayout_main/klayout_main/klayout.cc b/src/klayout_main/klayout_main/klayout.cc
index 29187840f..ecd106776 100644
--- a/src/klayout_main/klayout_main/klayout.cc
+++ b/src/klayout_main/klayout_main/klayout.cc
@@ -44,6 +44,7 @@
 #include "imgForceLink.h"
 #if defined(HAVE_RUBY)
 #include "drcForceLink.h"
+#include "lvsForceLink.h"
 #endif
 
 #if defined(HAVE_QTBINDINGS)
diff --git a/src/unit_tests/unit_test_main.cc b/src/unit_tests/unit_test_main.cc
index 8e16f6546..5c71f874b 100644
--- a/src/unit_tests/unit_test_main.cc
+++ b/src/unit_tests/unit_test_main.cc
@@ -67,6 +67,7 @@
 #include "rdbForceLink.h"
 #if defined(HAVE_RUBY) && defined(HAVE_QT)
 #include "drcForceLink.h"
+#include "lvsForceLink.h"
 #endif
 
 static int main_cont (int &argc, char **argv);
diff --git a/src/with_all_libs.pri b/src/with_all_libs.pri
index d001761ea..b3bed76b0 100644
--- a/src/with_all_libs.pri
+++ b/src/with_all_libs.pri
@@ -37,9 +37,9 @@ equals(HAVE_PYTHON, "1") {
 !equals(HAVE_QT, "0") {
   equals(HAVE_RUBY, "1") {
     # DRC is only available with Ruby
-    INCLUDEPATH += $$DRC_INC
-    DEPENDPATH += $$DRC_INC
-    LIBS += -lklayout_drc
+    INCLUDEPATH += $$DRC_INC $$LVS_INC
+    DEPENDPATH += $$DRC_INC $$LVS_INC
+    LIBS += -lklayout_drc -lklayout_lvs
   }
 }