diff --git a/Makefile b/Makefile
index 579259d1..1e781dab 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,9 @@ build: pre_build
 	./Makefile.dryice.js bm
 
 doc:
-	cd doc; node build.js
+	cd doc;\
+	test -d node_modules || npm install;\
+	node build.js
 
 clean:
 	rm -rf build
diff --git a/doc/README.md b/doc/README.md
index 38dbd144..d5036edf 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -12,6 +12,7 @@ In the root directory, just run:
 
 In this directory, just run:
 
+    npm install
     node build.js
 
 # Build File
diff --git a/doc/package.json b/doc/package.json
new file mode 100644
index 00000000..6d332fa2
--- /dev/null
+++ b/doc/package.json
@@ -0,0 +1,7 @@
+{
+    "name": "ace-api",
+    "version": "0.0.0",
+    "dependencies": {
+        "panino" : "~1.0.15"
+    }
+}
\ No newline at end of file