diff --git a/Makefile b/Makefile
index 8785ff98..b35cc30f 100644
--- a/Makefile
+++ b/Makefile
@@ -64,7 +64,7 @@ html: content
 	@echo zjy make html
 	-$(Q)$(SPHINXBUILD) -t $(DOC_TAG) -b html -d $(BUILDDIR)/doctrees $(SOURCEDIR) $(BUILDDIR)/html $(SPHINXOPTS) $(OPTS) > $(BUILDDIR)/doc.log 2>&1
 	@echo zjy filter doc in log
-	#$(Q)./scripts/filter-doc-log.sh $(BUILDDIR)/doc.log
+	$(Q)./scripts/filter-doc-log.sh $(BUILDDIR)/doc.log
 	@echo zjy done
 singlehtml: content 
 	-$(Q)$(SPHINXBUILD) -t $(DOC_TAG) -b singlehtml -d $(BUILDDIR)/doctrees $(SOURCEDIR) $(BUILDDIR)/html $(SPHINXOPTS) $(OPTS) > $(BUILDDIR)/doc.log 2>&1
diff --git a/scripts/build.sh b/scripts/build.sh
index 09070514..75a6edcc 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -41,8 +41,6 @@ cd docs
 make -v
 make clean
 make html
-#./scripts/filter-doc-log.sh _build/doc.log
-
 retval=$?
 ls -la _build
 echo "result = $retval"
diff --git a/scripts/filter-known-issues.py b/scripts/filter-known-issues.py
index 17a6231e..e72436e6 100755
--- a/scripts/filter-known-issues.py
+++ b/scripts/filter-known-issues.py
@@ -124,7 +124,6 @@ def config_import(paths):
 
 
 def print_error(f, str):
-
     tmp = str.decode("utf-8")
     print("zjy", tmp)
     f.write(tmp)