diff --git a/Makefile b/Makefile
index 4b45ddb..3b890dd 100755
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,6 @@
 MAKEFLAGS = --jobs=4
 UNAME != uname
 MAKEDIR != pwd
-
 # Options
 # DBG --- build with debugging symbols and logging
 
@@ -230,7 +229,7 @@ CDB_O := $(patsubst %.c, %.o, $(CDB_C))
 $(CDB)/libcdb.a: $(CDB_O)
 	mkdir -p $(BIN)
 	rm -f $(CDB)/libcdb.a
-	ar rv $@ $^
+	make -C $(CDB) libcdb.a 
 	
 tools/libcdb.a: $(CDB)/libcdb.a
 	cp $(CDB)/libcdb.a tools
@@ -259,8 +258,8 @@ input.md: $(INPUTMD)
 	@./primum -d $* > $@
 
 $(BIN)/libquickjs.a: 
-	cd quickjs && make clean
-	cd quickjs && make SYSRT=$(SYSRT) TTARGET=$(TTARGET) ARCH=$(ARCH) DBG=$(DBG) OPT=$(OPT) AR=$(AR) OS=$(OS) libquickjs.a HOST_CC=$(CC) LEAK=$(LEAK)
+	make -C quickjs clean
+	make -C quickjs SYSRT=$(SYSRT) TTARGET=$(TTARGET) ARCH=$(ARCH) DBG=$(DBG) OPT=$(OPT) AR=$(AR) OS=$(OS) libquickjs.a HOST_CC=$(CC) LEAK=$(LEAK)
 	@mkdir -p $(BIN)
 	cp -rf quickjs/libquickjs.* $(BIN)