diff --git a/lib/pclsync/Makefile b/lib/pclsync/Makefile
index 545156d..c670521 100644
--- a/lib/pclsync/Makefile
+++ b/lib/pclsync/Makefile
@@ -4,7 +4,7 @@ RANLIB=ranlib
 #USESSL=openssl
 USESSL=mbed
 
-CFLAGS=-Werror -O2 -g -fno-stack-protector -fomit-frame-pointer -mtune=core2 -I../sqlite -fPIC
+CFLAGS=-Werror -O2 -g -fno-stack-protector -fomit-frame-pointer -I../sqlite -fPIC
 
 LIB_A=psynclib.a
 UNAME_S := $(shell uname -s)
diff --git a/lib/poverlay_linux/Makefile b/lib/poverlay_linux/Makefile
index 4df67cd..518046e 100644
--- a/lib/poverlay_linux/Makefile
+++ b/lib/poverlay_linux/Makefile
@@ -1,9 +1,8 @@
 CC=cc
-#USESSL=openssl
 USESSL=mbed
 
-#CFLAGS=-Wall -Wpointer-arith -O2 -g -fsanitize=address -mtune=core2
-CFLAGS=-Wall -Wpointer-arith -O2 -g -fno-stack-protector -fomit-frame-pointer -mtune=core2 -DPCLOUD_TESTING
+CFLAGS=-Wall -Wpointer-arith -O2 -g -fsanitize=address 
+#CFLAGS=-Wall -Wpointer-arith -O2 -g -fno-stack-protector -fomit-frame-pointer -DPCLOUD_TESTING
 
 UNAME_S := $(shell uname -s)
 UNAME_V := $(shell uname -v)