diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 000000000..9f9cfdc27
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,13 @@
+{
+    "version": "0.1.0",
+    "configurations": [
+        {
+            "name": "Debug Jest Tests",
+            "type": "node",
+            "request": "launch",
+            "runtimeArgs": ["--inspect-brk", "${workspaceRoot}/node_modules/.bin/jest", "--runInBand", "--coverage", "false"],
+            "console": "integratedTerminal",
+            "internalConsoleOptions": "neverOpen"
+        }
+    ]
+}
diff --git a/__tests__/licenses.test.ts b/__tests__/licenses.test.ts
index b8b519339..c5d0698e5 100644
--- a/__tests__/licenses.test.ts
+++ b/__tests__/licenses.test.ts
@@ -49,5 +49,5 @@ let rubyChange: Change = {
 test('hasInvalidLicenses fails if an unallowed license is found', async () => {
   const changes: Changes = [npmChange, rubyChange]
   const result = hasInvalidLicenses(changes, ['BSD'], [])
-  expect(result.length).toBe(1)
+  expect(result[0]).toBe(npmChange)
 })
diff --git a/src/licenses.ts b/src/licenses.ts
index ee38a4672..f40532003 100644
--- a/src/licenses.ts
+++ b/src/licenses.ts
@@ -1,3 +1,4 @@
+import * as core from '@actions/core'
 import {Change, ChangeSchema} from './schemas'
 
 export function hasInvalidLicenses(
@@ -21,14 +22,10 @@ export function hasInvalidLicenses(
       continue
     }
 
-    if (allowLicenses.includes(license)) {
+    if (!allowLicenses.includes(license)) {
       disallowed.push(change)
     }
   }
 
   return disallowed
 }
-
-export function printLicensesError(changes: Array<Change>): void {
-  return
-}
diff --git a/src/main.ts b/src/main.ts
index 8160b3b6d..777133441 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -6,7 +6,7 @@ import {RequestError} from '@octokit/request-error'
 import {Change, PullRequestSchema, Severity} from './schemas'
 import {readConfigFile} from '../src/config'
 import {filterChangesBySeverity} from '../src/filter'
-import {hasInvalidLicenses, printLicensesError} from './licenses'
+import {hasInvalidLicenses} from './licenses'
 
 async function run(): Promise<void> {
   try {
@@ -43,7 +43,7 @@ async function run(): Promise<void> {
     )
 
     if (licenseErrors.length > 0) {
-      printLicensesError(licenseErrors)
+      printLicensesError(licenseErrors, config.allow_licenses!)
       throw new Error('Dependency review detected incompatible licenses.')
     }
 
@@ -111,4 +111,18 @@ function renderSeverity(
   return `${styles.color[color].open}(${severity} severity)${styles.color[color].close}`
 }
 
+function printLicensesError(
+  changes: Array<Change>,
+  allowLicenses: Array<string>
+): void {
+  core.info('Dependency review detected incompatible licenses.')
+  core.info('\nAllowed licenses: ' + allowLicenses.join(', ') + '\n')
+  core.info('The following dependencies have incompatible licenses:')
+  for (const change of changes) {
+    core.info(
+      `${styles.bold.open}${change.manifest} » ${change.name}@${change.version}${styles.bold.close} – ${change.license}`
+    )
+  }
+}
+
 run()