diff --git a/components/frontend/src/dashboard/StatusPieChart.js b/components/frontend/src/dashboard/StatusPieChart.js
index 934717b0a9..f7c406ebcf 100644
--- a/components/frontend/src/dashboard/StatusPieChart.js
+++ b/components/frontend/src/dashboard/StatusPieChart.js
@@ -41,7 +41,7 @@ export function StatusPieChart(props) {
                         { y: props.green, label: `Target met: ${nr_metrics_label(props.green)}` },
                         { y: props.yellow, label: `Near target: ${nr_metrics_label(props.yellow)}` },
                         { y: props.grey, label: `Technical debt target met: ${nr_metrics_label(props.grey)}` },
-                        { y: props.white, label: `Uknown: ${nr_metrics_label(props.white)}` }
+                        { y: props.white, label: `Unknown: ${nr_metrics_label(props.white)}` }
                     ]}
                 />
             }
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index ddc6838b2b..905344c9f8 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -9,6 +9,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 <!-- The line "## <square-bracket>Unreleased</square-bracket>" is replaced by the ci/release.py script with the new release version and release date. -->
 
+## [Unreleased]
+
+### Fixed
+
+- Typo in metric pie chart tooltip ("Uknown"). Fixes [#857](https://github.com/ICTU/quality-time/issues/857).
+
 ## [1.2.0] - [2019-12-10]
 
 ### Added