diff --git a/Makefile b/Makefile
index 5e94adce5..25b8be078 100644
--- a/Makefile
+++ b/Makefile
@@ -13,5 +13,7 @@ install:
 regression:
 	make -C pipelined/regression
 
-
+clean:
+	make clean -C pipelined/regression
+	
 
diff --git a/pipelined/regression/Makefile b/pipelined/regression/Makefile
index 5de1f1cbb..8bcb403c7 100644
--- a/pipelined/regression/Makefile
+++ b/pipelined/regression/Makefile
@@ -5,6 +5,7 @@ make allclean:
 make clean:
 	make clean -C ../../addins/riscv-arch-test
 	make clean -C ../../tests/wally-riscv-arch-test
+	make allclean -C ../../tests/imperas-riscv-tests
 
 make all:
 	# *** Build old tests/imperas-riscv-tests for now;