diff --git a/index.js b/index.js
index f016d68..c6a49f6 100755
--- a/index.js
+++ b/index.js
@@ -1,5 +1,6 @@
 #!/usr/bin/env node
 
+var debug = require('debug')('index')
 var fs = require('fs');
 var snykFilter = require('./lib/snyk-filter.js');
 var argv = require('minimist')(process.argv.slice(2));
diff --git a/lib/snyk-display.js b/lib/snyk-display.js
index e5c2cf9..a13496c 100644
--- a/lib/snyk-display.js
+++ b/lib/snyk-display.js
@@ -1,4 +1,5 @@
 #!/usr/bin/env node
+var debug = require('debug')('snyk-display')
 
 const chalk = require('chalk');
 
@@ -9,6 +10,8 @@ module.exports = {displayResult: displayResult };
 
 function displayResult(res, options) {
 
+  debug('options: ' + options)
+
   var meta = metaForDisplay(res, options) + '\n\n';
   var packageManager = options.packageManager;
   var summary = 'Tested ';
diff --git a/lib/snyk-filter.js b/lib/snyk-filter.js
index d6cec58..d0eb7fa 100644
--- a/lib/snyk-filter.js
+++ b/lib/snyk-filter.js
@@ -1,5 +1,5 @@
 #!/usr/bin/env node
-
+var debug = require('debug')('snyk-filter')
 const yaml = require('js-yaml');
 const fs = require('fs');
 const path = require('path');
@@ -14,6 +14,7 @@ var options = {"showVulnPaths": true, "path": path.dirname(__dirname).split(path
 
 function onDataCallback(data, reportCallback) {
   
+  debug('data: ' + data)
 
   const jqFilterString = customFilters.filter;
   const jqPassString = customFilters.pass;
@@ -60,6 +61,7 @@ function run(source, reportCallback, filters, cliOptions = null) {
   try {
     var ymlFileInJSON = yaml.safeLoad(fs.readFileSync(filters, 'utf8'));
     customFilters = ymlFileInJSON.customFilters;
+    debug(customFilters)
   } catch (e) {
     console.log("Error loading yml file" + e);
   }
@@ -74,6 +76,7 @@ function run(source, reportCallback, filters, cliOptions = null) {
     }
   } catch (error) {
     console.log('out');
+    debug('error reading input: ' + error)
   }
 }
 
diff --git a/package.json b/package.json
index 5a7ba67..7045c52 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
   },
   "dependencies": {
     "chalk": "^2.3.2",
+    "debug": "^4.3.1",
     "is-relative": "^1.0.0",
     "js-yaml": "^3.13.1",
     "lodash": "^4.17.20",
@@ -26,4 +27,4 @@
     "mocha": "^5.0.4"
   },
   "snyk": true
-}
\ No newline at end of file
+}