diff --git a/sample_mm/Makefile b/sample_mm/Makefile
index b932876..b277c0c 100644
--- a/sample_mm/Makefile
+++ b/sample_mm/Makefile
@@ -84,8 +84,8 @@ else
 	endif
 endif
 
-# if ENGINE is orig, OB, or L4D
-ifneq (,$(filter original orangebox left4dead,$(ENGINE)))
+# if ENGINE is original or OB
+ifneq (,$(filter original orangebox,$(ENGINE)))
 	LIB_SUFFIX = _i486.$(LIB_EXT)
 else
 	LIB_PREFIX = lib
diff --git a/stub_mm/Makefile b/stub_mm/Makefile
index 8075fb6..0020247 100644
--- a/stub_mm/Makefile
+++ b/stub_mm/Makefile
@@ -84,8 +84,8 @@ else
 	endif
 endif
 
-# if ENGINE is orig, OB, or L4D
-ifneq (,$(filter original orangebox left4dead,$(ENGINE)))
+# if ENGINE is original or OB
+ifneq (,$(filter original orangebox,$(ENGINE)))
 	LIB_SUFFIX = _i486.$(LIB_EXT)
 else
 	LIB_PREFIX = lib