diff --git a/sample_mm/Makefile b/sample_mm/Makefile
index f02b083..4f1b76c 100755
--- a/sample_mm/Makefile
+++ b/sample_mm/Makefile
@@ -32,7 +32,7 @@ ifeq "$(ENGINE)" "original"
 	HL2SDK = $(HL2SDK_ORIG)
 	HL2PUB = $(HL2SDK)/public
 	HL2LIB = $(HL2SDK)/linux_sdk
-	CFLAGS += -DSOURCE_ENGINE=2
+	CFLAGS += -DSOURCE_ENGINE=1
 	METAMOD = $(MMSOURCE17)/core-legacy
 	INCLUDE += -I$(HL2SDK)/public/dlls
 	SRCDS = $(SRCDS_BASE)
@@ -59,7 +59,7 @@ ifeq "$(ENGINE)" "left4dead"
 	override ENGSET = true
 endif
 
-CFLAGS += -DSE_EPISODEONE=2 -DSE_ORANGEBOX=3 -DSE_LEFT4DEAD=4
+CFLAGS += -DSE_EPISODEONE=1 -SE_DARKMESSIAH=2 -DSE_ORANGEBOX=3 -DSE_LEFT4DEAD=4
 
 LINK += $(HL2LIB)/tier1_i486.a vstdlib_i486.so tier0_i486.so -static-libgcc
 
diff --git a/stub_mm/Makefile b/stub_mm/Makefile
index 245ca33..eef200d 100644
--- a/stub_mm/Makefile
+++ b/stub_mm/Makefile
@@ -32,7 +32,7 @@ ifeq "$(ENGINE)" "original"
 	HL2SDK = $(HL2SDK_ORIG)
 	HL2PUB = $(HL2SDK)/public
 	HL2LIB = $(HL2SDK)/linux_sdk
-	CFLAGS += -DSOURCE_ENGINE=2
+	CFLAGS += -DSOURCE_ENGINE=1
 	METAMOD = $(MMSOURCE17)/core-legacy
 	INCLUDE += -I$(HL2SDK)/public/dlls
 	SRCDS = $(SRCDS_BASE)
@@ -59,7 +59,7 @@ ifeq "$(ENGINE)" "left4dead"
 	override ENGSET = true
 endif
 
-CFLAGS += -DSE_EPISODEONE=2 -DSE_ORANGEBOX=3 -DSE_LEFT4DEAD=4
+CFLAGS += -DSE_EPISODEONE=1 -SE_DARKMESSIAH=2 -DSE_ORANGEBOX=3 -DSE_LEFT4DEAD=4
 
 LINK += $(HL2LIB)/tier1_i486.a vstdlib_i486.so tier0_i486.so -static-libgcc