diff --git a/CBFlib.spec b/CBFlib.spec
index 77cdcd7..1e172a1 100644
--- a/CBFlib.spec
+++ b/CBFlib.spec
@@ -1,7 +1,7 @@
 Summary: Crystallographic Binary File and Image Library
 Name: CBFlib
 Version: 0.9.5.2
-Release: 3%{?dist}
+Release: 4%{?dist}
 # library files (*.so*) are LGPLv2+, all else is GPLv2+
 License: GPLv2+ and (GPLv2+ or LGPLv2+)
 Group: System Environment/Libraries
@@ -25,6 +25,7 @@ CBF binary data files and imgCIF ASCII data files.
 Summary: Header files and library for developing programs with cbf
 Requires: %{name}%{?_isa} = %{version}-%{release}
 Group: Development/Libraries
+Requires: hdf5-devel
 
 %description devel
 
@@ -137,6 +138,9 @@ rm -rf %{buildroot}
 %{_includedir}/cbf
 
 %changelog
+* Mon Jun 22 2015 Ralf Corsépius <corsepiu@fedoraproject.org> - 0.9.5.2-4
+- Let *-devel Requires: hd5-devel (RHBZ #1233633).
+
 * Tue Jun 16 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.9.5.2-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild