diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a5474c8..1e73aaef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # OctoPrint Changelog
 
-## 1.2.0 - Unreleased
+## 1.2.0 (Unreleased)
 
 ### New Features
 
@@ -33,7 +33,13 @@
 * [#435](https://github.com/foosel/OctoPrint/issues/435) - Always interpret negative duration (e.g. for print time left)
   as 0
 
-## 1.1.0 - 2014-09-03
+## 1.1.1 (Unreleased)
+
+### Bug Fixes
+
+* [#580](https://github.com/foosel/OctoPrint/issues/580) - Properly unset job data when instructed so by callers
+
+## 1.1.0 (2014-09-03)
 
 ### New Features
 
@@ -103,6 +109,6 @@
 
 ([Commits](https://github.com/foosel/OctoPrint/compare/1.0.0...1.1.0))
 
-## 1.0.0
+## 1.0.0 (2014-06-22)
 
 First release with new versioning scheme.
\ No newline at end of file
diff --git a/src/octoprint/printer.py b/src/octoprint/printer.py
index 824a071b..6ce7d257 100644
--- a/src/octoprint/printer.py
+++ b/src/octoprint/printer.py
@@ -388,6 +388,17 @@ class Printer():
 			}
 		else:
 			self._selectedFile = None
+			self._stateMonitor.setJobData({
+				"file": {
+					"name": None,
+					"origin": None,
+					"size": None,
+					"date": None
+				},
+				"estimatedPrintTime": None,
+				"filament": None,
+			})
+			return
 
 		estimatedPrintTime = None
 		lastPrintTime = None