diff --git a/build/targets.device.n0110.mak b/build/targets.device.n0110.mak
index ecd809e5b..05181fd02 100644
--- a/build/targets.device.n0110.mak
+++ b/build/targets.device.n0110.mak
@@ -23,8 +23,8 @@ $(BUILD_DIR)/test.external_flash.write.$(EXE): $(BUILD_DIR)/quiz/src/test_ion_ex
 .PHONY: %.two_binaries
 %.two_binaries: %.elf
 	@echo "Building an internal and an external binary for     $<"
-	$(Q) $(OBJCOPY) -O binary -j .text.external -j .rodata.external -j .exam_mode_buffer $< $(basename $<).external.bin
-	$(Q) $(OBJCOPY) -O binary -R .text.external -R .rodata.external -R .exam_mode_buffer $< $(basename $<).internal.bin
+	$(Q) $(OBJCOPY) -O binary -j .text.external -j .rodata.external -j .exam_mode_buffer $(BUILD_DIR)/$< $(BUILD_DIR)/$(basename $<).external.bin
+	$(Q) $(OBJCOPY) -O binary -R .text.external -R .rodata.external -R .exam_mode_buffer $(BUILD_DIR)/$< $(BUILD_DIR)/$(basename $<).internal.bin
 	@echo "Padding $(basename $<).external.bin and $(basename $<).internal.bin"
 	$(Q) printf "\xFF\xFF\xFF\xFF" >> $(basename $<).external.bin
 	$(Q) printf "\xFF\xFF\xFF\xFF" >> $(basename $<).internal.bin
@@ -41,7 +41,7 @@ binpack:
 	${MAKE} $(BUILD_DIR)/bench.ram.bin
 	cp $(BUILD_DIR)/bench.ram.bin $(BUILD_DIR)/bench.flash.bin build/binpack
 	${MAKE} clean
-	${MAKE} $(BUILD_DIR)/epsilon.onboarding.update.two_binaries
+	${MAKE} epsilon.onboarding.update.two_binaries
 	cp $(BUILD_DIR)/epsilon.onboarding.update.internal.bin $(BUILD_DIR)/epsilon.onboarding.update.external.bin build/binpack
 	${MAKE} clean
 	cd build && tar cvfz binpack-`git rev-parse HEAD | head -c 7`.tgz binpack