diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index feb43a324..ad0f28267 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1145,7 +1145,6 @@ set (PCH_SOURCES
 	w_wad.cpp
 	wi_stuff.cpp
 	zstrformat.cpp
-	g_inventory/a_armor.cpp
 	g_inventory/a_keys.cpp
 	g_inventory/a_pickups.cpp
 	g_inventory/a_weapons.cpp