diff --git a/vtk.changes b/vtk.changes
index e7b0278..3152b52 100644
--- a/vtk.changes
+++ b/vtk.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Apr  9 11:28:00 UTC 2019 - Christophe Giboudeaux <christophe@krop.fr>
+
+- Add an explicit 'Requires: double-conversion-devel' for vtk-devel.
+  The double-conversion library is mentioned in vtkdoubleconversion.cmake
+  but isn't automatically installed.
+
 -------------------------------------------------------------------
 Fri Mar 15 18:42:02 UTC 2019 - Stefan Brüns <stefan.bruens@rwth-aachen.de>
 
diff --git a/vtk.spec b/vtk.spec
index b3e618f..f06505e 100644
--- a/vtk.spec
+++ b/vtk.spec
@@ -206,6 +206,7 @@ Requires:       %{name}-java = %{version}
 Requires:       %{shlib} = %{version}
 Requires:       R-core-devel
 Requires:       cmake >= 3.4
+Requires:       double-conversion-devel
 Requires:       gcc-c++
 %{?with_gl2ps:Requires:       gl2ps-devel}
 Requires:       hdf5-devel