diff --git a/lib/layouts/scrbook.layout b/lib/layouts/scrbook.layout
index a9aa398419..13a46b8ceb 100644
--- a/lib/layouts/scrbook.layout
+++ b/lib/layouts/scrbook.layout
@@ -19,6 +19,13 @@ Style Chapter
 End
 
 
+# Equations are numbered by chapter
+Counter equation
+	Within chapter
+	LabelString "\thechapter.\arabic{equation}"
+End
+
+
 Style Bibliography
 	TopSep                4
 	LabelString           "Bibliography"
diff --git a/status.20x b/status.20x
index 5a81a56247..fe3ea5165e 100644
--- a/status.20x
+++ b/status.20x
@@ -93,6 +93,8 @@ What's new
 
 - Fix display of file names with ampersands in the tab header (bug 8757).
 
+- The koma-script book class numbers equations by chapter.
+
 
 * DOCUMENTATION AND LOCALIZATION