diff --git a/buildcfg.txt b/buildcfg.txt
index 06e2661d..ce000985 100644
--- a/buildcfg.txt
+++ b/buildcfg.txt
@@ -172,7 +172,6 @@ DMXGUS
 DEMO1 = demo1_dm
 DEMO2 = demo2_dm
 DEMO3 = demo3_dm
-DEMO4 = demo4_dm
 #else
 DEMO1 = demo1_p2
 DEMO2 = demo2_p2
diff --git a/lumps/README.DEMO b/lumps/README.DEMO
index 0566dc02..b92d649f 100644
--- a/lumps/README.DEMO
+++ b/lumps/README.DEMO
@@ -30,4 +30,3 @@ FreeDM:
 DEMO1: DM21 by Xindage, Chungy, Erick, and Xer - v0.12
 DEMO2: DM06 by Chungy, Xindage, and Erick - v0.12
 DEMO3: DM18 by Chungy, Xindage, and Erick - v0.12
-DEMO4: DM09 by Chungy, Xindage, and Erick - v0.12
diff --git a/lumps/demo4_dm.lmp b/lumps/demo4_dm.lmp
deleted file mode 100644
index 8a94c97b..00000000
Binary files a/lumps/demo4_dm.lmp and /dev/null differ