diff --git a/gen/examples/synth_shed/Makefile b/gen/examples/synth_shed/Makefile
index e10ccd1..95f73dc 100644
--- a/gen/examples/synth_shed/Makefile
+++ b/gen/examples/synth_shed/Makefile
@@ -3,21 +3,9 @@ YML2_PROC=$(YML2_PATH)/yml2proc $(YML2_OPTS)
 YML2_OPTS=--encoding=utf8
 
 
-MARKER_DIR=.
-
-YML2_MARKERS= \
-	$(MARKER_DIR)/gen_pybind.marker
-
-.PHONY: all codegen clean
-
-all: codegen
-
-# ------------- YML2 CodeGen --------------
-codegen: $(YML2_MARKERS)
-
-$(YML2_MARKERS): $(MARKER_DIR)/%.marker : %.ysl2 cid_grammar.yml2
+py_module.cc : gen_pybind.ysl2 cid_grammar.yml2
 	$(YML2_PROC) -y $< cid_grammar.yml2
 
-clean: -dirs
+clean:
 	echo -f $(YML2_MARKERS)