diff --git a/.travis.yml b/.travis.yml
index d631b30..06f2f6e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,7 +23,7 @@ sudo: required
 
 script:
   - export GO111MODULE=on
-  - make lint unit build mod-check
+  - make lint unit build mod-check rpc-js-compile
   - make tags=dev
 
 after_script:
diff --git a/Makefile b/Makefile
index 814a89e..56f79b7 100644
--- a/Makefile
+++ b/Makefile
@@ -80,3 +80,7 @@ rpc:
 rpc-check: rpc
 	@$(call print, "Verifying protos.")
 	if test -n "$$(git describe --dirty | grep dirty)"; then echo "Protos not properly formatted or not compiled with correct version!"; git status; git diff; exit 1; fi
+
+rpc-js-compile:
+	@$(call print, "Compiling JSON/WASM stubs.")
+	GOOS=js GOARCH=wasm $(GOBUILD) $(PKG)/looprpc