diff --git a/build/cover.sh b/build/cover.sh
index 17b5be3b1..56b2476cb 100755
--- a/build/cover.sh
+++ b/build/cover.sh
@@ -27,6 +27,9 @@ if [ -z "${PKG}" ]; then
   exit 1
 fi
 
+export CGO_ENABLED=1
+export GODEBUG=netdns=go+2
+
 rm -rf coverage.txt
 for d in $(go list "${PKG}/..." | grep -v vendor | grep -v '/test/e2e' | grep -v images); do
   t=$(date +%s);
diff --git a/build/test.sh b/build/test.sh
index 59a540461..480d16671 100755
--- a/build/test.sh
+++ b/build/test.sh
@@ -30,6 +30,7 @@ fi
 
 # enabled to use host dns resolver
 export CGO_ENABLED=1
+export GODEBUG=netdns=go+2
 
-go test -v -race -tags "cgo" \
+go test -v -race \
   $(go list "${PKG}/..." | grep -v vendor | grep -v '/test/e2e' | grep -v images | grep -v "docs/examples")