diff --git a/modd.conf b/modd.conf
index 2d20754..42e8ad8 100644
--- a/modd.conf
+++ b/modd.conf
@@ -1,3 +1,7 @@
+**/*.go
+!"vendor/**/*.go" {
+  prep: go test -v @dirmods
+}
 **/*.go {
   prep: mkdir -p ./bin
   prep: go build -v -o ./bin/postprocessor-image-template ./cmd/post-processor/image-template