diff --git a/test/Makefile b/test/Makefile
index ad2c039..5aa4443 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -7,7 +7,7 @@ include $(TOPDIR)/Makefile.config
 dumps:
 	$(MAKE) dumps -C riscv_instructions/
 	mkdir -p ${TOPDIR}/target/dumps/
-	find . -name '*.dump' -exec mv {} ${TOPDIR}/target/dumps/ \;
+	find . -path ${TOPDIR}/target -prune -o -name '*.dump' -exec mv {} ${TOPDIR}/target/dumps/ \;
 
 user_lib:
 	$(MAKE) -C userlib/