diff --git a/vtk-compat_gl.changes b/vtk-compat_gl.changes
index 4c55a2d..47e17b3 100644
--- a/vtk-compat_gl.changes
+++ b/vtk-compat_gl.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Oct 12 20:47:27 UTC 2017 - jengelh@inai.de
+
+- Rectify RPM groups again.
+
 -------------------------------------------------------------------
 Sun Oct  1 20:36:49 UTC 2017 - stefan.bruens@rwth-aachen.de
 
diff --git a/vtk-compat_gl.spec b/vtk-compat_gl.spec
index e2699bb..6d4a5eb 100644
--- a/vtk-compat_gl.spec
+++ b/vtk-compat_gl.spec
@@ -182,7 +182,7 @@ use VTK to do 3D visualisation.
 
 %package devel-doc
 Summary:        VTK API documentation
-Group:          Development/Libraries/C and C++
+Group:          Documentation/HTML
 
 %description devel-doc
 VTK is a software system for image processing, 3D graphics, volume
diff --git a/vtk.changes b/vtk.changes
index 4c55a2d..47e17b3 100644
--- a/vtk.changes
+++ b/vtk.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Oct 12 20:47:27 UTC 2017 - jengelh@inai.de
+
+- Rectify RPM groups again.
+
 -------------------------------------------------------------------
 Sun Oct  1 20:36:49 UTC 2017 - stefan.bruens@rwth-aachen.de
 
diff --git a/vtk.spec b/vtk.spec
index 09f802c..21ccc52 100644
--- a/vtk.spec
+++ b/vtk.spec
@@ -182,7 +182,7 @@ use VTK to do 3D visualisation.
 
 %package devel-doc
 Summary:        VTK API documentation
-Group:          Development/Libraries/C and C++
+Group:          Documentation/HTML
 
 %description devel-doc
 VTK is a software system for image processing, 3D graphics, volume