diff --git a/tgstation.dme b/tgstation.dme
index 37470c884f..70d1d890ca 100755
--- a/tgstation.dme
+++ b/tgstation.dme
@@ -507,6 +507,7 @@
 #include "code\datums\wires\syndicatebomb.dm"
 #include "code\datums\wires\tesla_coil.dm"
 #include "code\datums\wires\vending.dm"
+#include "code\game\alternate_appearance.dm"
 #include "code\game\atoms.dm"
 #include "code\game\atoms_movable.dm"
 #include "code\game\communications.dm"