diff --git a/src/Makefile b/src/Makefile
index 5c071b0..ab00d1d 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -9,7 +9,7 @@ all: ../build/firmware/armv7-none-eabihf/release/runtime ../build/runtime.bin
 	mkdir -p ../build
 	python gateware/zc706.py -r ../build/pl.rs -c ../build/rustc-cfg -V $(VARIANT)
 
-../build/firmware/armv7-none-eabihf/release/runtime: ../build/pl.rs ../build/rustc-cfg $(shell find . -path ./szl -prune -o -print)
+../build/firmware/armv7-none-eabihf/release/runtime: ../build/pl.rs ../build/rustc-cfg $(shell find . -print)
 	XBUILD_SYSROOT_PATH=`pwd`/../build/sysroot cargo xbuild --release -p runtime --target-dir ../build/firmware
 
 ../build/runtime.bin: ../build/firmware/armv7-none-eabihf/release/runtime