diff --git a/install.py b/install.py
index b322176..a7478eb 100755
--- a/install.py
+++ b/install.py
@@ -284,7 +284,12 @@ class Installer:
 
         ui.info(ui.green, program)
         ui.info("-" * len(program))
-        todo = self.conf[program]
+
+        try:
+            todo = self.conf[program]
+        except KeyError:
+            ui.fatal("'{}' wasn't found in conf file.".format(program))
+
         for action in todo:
             name = list(action.keys())[0]
             params = action[name]