diff --git a/stage4/05-pisdr-uhd/00-run.sh b/stage4/05-pisdr-uhd/00-run.sh
index 7526a13..0a79ae5 100755
--- a/stage4/05-pisdr-uhd/00-run.sh
+++ b/stage4/05-pisdr-uhd/00-run.sh
@@ -11,7 +11,10 @@ fi
 cd uhd/host
 mkdir -p build
 cd build
-cmake -GNinja -DCMAKE_BUILD_TYPE=Release ../
+cmake -DCMAKE_CXX_FLAGS:STRING="-march=armv7-a -mfloat-abi=hard -mfpu=neon -mtune=cortex-a15 -Wno-psabi" \
+      -DCMAKE_C_FLAGS:STRING="-march=armv7-a -mfloat-abi=hard -mfpu=neon -mtune=cortex-a15 -Wno-psabi" \
+      -DCMAKE_ASM_FLAGS:STRING="-march=armv7-a -mfloat-abi=hard -mfpu=neon -mtune=cortex-a15" \
+      -GNinja -DCMAKE_BUILD_TYPE=Release ../
 ninja install
 cp /usr/local/lib/uhd/utils/uhd-usrp.rules /etc/udev/rules.d/
 ldconfig