diff --git a/meson.build b/meson.build
index bec557a..20d186b 100644
--- a/meson.build
+++ b/meson.build
@@ -24,6 +24,7 @@
 executable(
     'virtual-sensor',
     [
+        'calculate.cpp',
         'virtualSensor.cpp',
         'dbusSensor.cpp',
         'dbusUtils.cpp',