diff --git a/.gitignore b/.gitignore
index cffd7e7..91f2110 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ npm-debug.log
 
 # Generate data
 test
+coverage
diff --git a/.npmignore b/.npmignore
index e6a895a..ba04ba4 100644
--- a/.npmignore
+++ b/.npmignore
@@ -2,6 +2,7 @@
 /specs
 /test
 /TypeScriptDefinitions
+/coverage
 .jshintrc
 .npmignore
 .travis.yml