diff --git a/Make.common b/Make.common
index 3f0b919..ee365f5 100644
--- a/Make.common
+++ b/Make.common
@@ -33,22 +33,6 @@ ARCH            ?= $(HOSTARCH)
 
 # Note: TIANOBASE is defined in master Makefile and exported
 GENFW           = $(TIANOBASE)/BaseTools/Source/C/bin/GenFw
-prefix          = /usr/bin/
-ifeq ($(ARCH),aarch64)
-  CC            = $(prefix)aarch64-linux-gnu-gcc
-  AS            = $(prefix)aarch64-linux-gnu-as
-  LD            = $(prefix)aarch64-linux-gnu-ld
-  AR            = $(prefix)aarch64-linux-gnu-ar
-  RANLIB        = $(prefix)aarch64-linux-gnu-ranlib
-  OBJCOPY       = $(prefix)aarch64-linux-gnu-objcopy
-else
-  CC            = $(prefix)gcc
-  AS            = $(prefix)as
-  LD            = $(prefix)ld
-  AR            = $(prefix)ar
-  RANLIB        = $(prefix)ranlib
-  OBJCOPY       = $(prefix)objcopy
-endif
 
 ifeq ($(MAKEWITH),TIANO)
 # Below file defines TARGET (RELEASE or DEBUG) and TOOL_CHAIN_TAG (GCC44, GCC45, GCC46, or GCC47)