diff --git a/tgstation.dme b/tgstation.dme
index dd6dbda63d1..6a6b62ee169 100644
--- a/tgstation.dme
+++ b/tgstation.dme
@@ -429,6 +429,7 @@
 #include "code\game\machinery\atmoalter\portable_atmospherics.dm"
 #include "code\game\machinery\atmoalter\pump.dm"
 #include "code\game\machinery\atmoalter\scrubber.dm"
+#include "code\game\machinery\atmoalter\zvent.dm"
 #include "code\game\machinery\bots\bots.dm"
 #include "code\game\machinery\bots\cleanbot.dm"
 #include "code\game\machinery\bots\ed209bot.dm"