diff --git a/debian/rules b/debian/rules
index deaa94da1..d48c96bfc 100755
--- a/debian/rules
+++ b/debian/rules
@@ -7,7 +7,7 @@ CXXFLAGS=-O3 -fstack-protector-strong
 	dh $@ --with systemd
 
 override_dh_auto_build:
-	make -j4
+	make -j`nproc`
 
 override_dh_systemd_start:
 	dh_systemd_start --restart-after-upgrade
diff --git a/make-linux.mk b/make-linux.mk
index d23e81d16..6dd1009aa 100644
--- a/make-linux.mk
+++ b/make-linux.mk
@@ -286,8 +286,8 @@ ifeq ($(ZT_ARCHITECTURE),3)
 		override CXXFLAGS+=-march=armv5t -mfloat-abi=soft -msoft-float -mno-unaligned-access -marm
 		ZT_USE_ARM32_NEON_ASM_CRYPTO=0
 	else
-		override CFLAGS+=-mfloat-abi=hard -mfpu=vfp -march=armv6zk+fp -mcpu=arm1176jzf-s -mstructure-size-boundary=8 -marm -mno-unaligned-access
-		override CXXFLAGS+=-mfloat-abi=hard -mfpu=vfp -march=armv6zk+fp -mcpu=arm1176jzf-s -fexceptions -mstructure-size-boundary=8 -marm -mno-unaligned-access
+		override CFLAGS+=-mfloat-abi=hard -march=armv6kz -marm -mfpu=vfp -mno-unaligned-access -mtp=cp15 -mcpu=arm1176jzf-s
+		override CXXFLAGS+=-mfloat-abi=hard -march=armv6kz -marm -mfpu=vfp -fexceptions -mno-unaligned-access -mtp=cp15 -mcpu=arm1176jzf-s
 		ZT_USE_ARM32_NEON_ASM_CRYPTO=0
 	endif
 endif