diff --git a/include/kernel-build.mk b/include/kernel-build.mk
index 5b332258f8..b9513ec414 100644
--- a/include/kernel-build.mk
+++ b/include/kernel-build.mk
@@ -63,7 +63,7 @@ ifdef CONFIG_COLLECT_KERNEL_DEBUG
 	mkdir -p $(KERNEL_BUILD_DIR)/debug/modules
 	$(CP) $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/debug/
 	-$(CP) \
-		$(STAGING_DIR_ROOT)/lib/modules/$(LINUX_VERSION)/* \
+		$(STAGING_DIR_ROOT)/lib/modules/$(LINUX_VERSION)/*.ko \
 		$(KERNEL_BUILD_DIR)/debug/modules/
 	$(FIND) $(KERNEL_BUILD_DIR)/debug -type f | $(XARGS) $(KERNEL_CROSS)strip --only-keep-debug
 	$(TAR) c -C $(KERNEL_BUILD_DIR) debug \