diff --git a/library/library.pro b/library/library.pro
index d434b12..2f7001c 100644
--- a/library/library.pro
+++ b/library/library.pro
@@ -91,7 +91,9 @@ HEADERS += \
     include/mobilisis/tariff_prepaid.h \
     include/mobilisis/tariff_carryover.h \
     include/mobilisis/tariff_global_defines.h \
-    include/mobilisis/atb_time.h
+    include/mobilisis/atb_time.h \
+    include/mobilisis/tariff_service.h \
+    include/mobilisis/tariff_out_of_service.h
 
 OTHER_FILES += src/main.cpp \
     ../tariffs/tariff_korneuburg.json \