diff --git a/Makefile b/Makefile
index e60bb29..0766a80 100644
--- a/Makefile
+++ b/Makefile
@@ -21,14 +21,14 @@ kernel.prepare: | submodule
 	ln -sf $$(readlink -f submodules/pve-kernel/submodules) $(BUILD_DIR)/kernel/
 	cp -r submodules/pve-kernel/patches/kernel/*            $(BUILD_DIR)/kernel/patches/kernel
 	cp -r patches/kernel/*                                  $(BUILD_DIR)/kernel/patches/kernel
-	cp    submodules/pve-kernel/*                           $(BUILD_DIR)/kernel/
+	cp    submodules/pve-kernel/*                           $(BUILD_DIR)/kernel/ || true
 
 qemu.prepare: | submodule
 	mkdir -p $(BUILD_DIR)/qemu/debian/
 	ln -sf $$(readlink -f submodules/pve-qemu/qemu)       $(BUILD_DIR)/qemu/
 	cp -r submodules/pve-qemu/debian/*                    $(BUILD_DIR)/qemu/debian
 	cp -r patches/qemu/*                                  $(BUILD_DIR)/qemu/debian/patches/pve
-	cp    submodules/pve-qemu/*                           $(BUILD_DIR)/qemu/
+	cp    submodules/pve-qemu/*                           $(BUILD_DIR)/qemu/ || true
 
 .PHONY: submodule
 submodule: