diff --git a/buildcfg.txt b/buildcfg.txt
index 71531f26..3cb0eee1 100644
--- a/buildcfg.txt
+++ b/buildcfg.txt
@@ -191,10 +191,17 @@ DMXGUS
 
 #ifdef DOOM2
 
+#ifdef FREEDM
+DEMO1 = demo1_dm
+DEMO2 = demo2_dm
+DEMO3 = demo3_dm
+DEMO4 = demo4_dm
+#else
 DEMO1 = demo1_d2
 DEMO2 = demo2_d2
 DEMO3 = demo3_d2
 DEMO4 = demo4_d2
+#endif
 
 #else /* not DOOM2 */
 
diff --git a/lumps/demo1_dm.lmp b/lumps/demo1_dm.lmp
new file mode 100644
index 00000000..a3a08ace
Binary files /dev/null and b/lumps/demo1_dm.lmp differ
diff --git a/lumps/demo2_dm.lmp b/lumps/demo2_dm.lmp
new file mode 100644
index 00000000..9bca7ee7
Binary files /dev/null and b/lumps/demo2_dm.lmp differ
diff --git a/lumps/demo3_dm.lmp b/lumps/demo3_dm.lmp
new file mode 100644
index 00000000..71e713cb
Binary files /dev/null and b/lumps/demo3_dm.lmp differ
diff --git a/lumps/demo4_dm.lmp b/lumps/demo4_dm.lmp
new file mode 100644
index 00000000..3c0b83b8
Binary files /dev/null and b/lumps/demo4_dm.lmp differ