diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0b78149..9ce9b4a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 CHANGELOG
 =========
 
+# 2.1.0 / 2017-12-26
+- [FEATURE] Disable callback if required python packages aren't installed. See [#28][] (thanks to @dobber)
+
 # 2.0.0 / 2017-12-12
 - [FEATURE] Add support for getting api_key from hostvars and thus from vault. See [#25][]
 - [BREAKING CHANGE] Drop support for ansible <2.0
diff --git a/datadog_callback.py b/datadog_callback.py
index e46c2f1..0fae51b 100644
--- a/datadog_callback.py
+++ b/datadog_callback.py
@@ -2,8 +2,13 @@
 import os.path
 import time
 
-import datadog
-import yaml
+try:
+    import datadog
+    import yaml
+    HAS_MODULES = True
+except ImportError:
+    HAS_MODULES = False
+
 
 from ansible.plugins.callback import CallbackBase
 from __main__ import cli
@@ -11,6 +16,11 @@
 
 class CallbackModule(CallbackBase):
     def __init__(self):
+        if not HAS_MODULES:
+            self.disabled = True
+            print 'Datadog callback disabled.\nMake sure you call all required libraries: "datadog" and "yaml".'
+        else:
+            self.disabled = False
 
         self._playbook_name = None
         self._start_time = time.time()
@@ -197,7 +207,8 @@ def v2_playbook_on_start(self, playbook):
     def v2_playbook_on_play_start(self, play):
         # On Ansible v2, Ansible doesn't set `self.play` automatically
         self.play = play
-        self.disabled = False
+        if self.disabled:
+            return
 
         # Read config and hostvars
         api_key, url = self._load_conf(os.path.join(os.path.dirname(__file__), "datadog_callback.yml"))