diff --git a/hydrogen.spec b/hydrogen.spec
index 1c0577e..9ac1bfa 100644
--- a/hydrogen.spec
+++ b/hydrogen.spec
@@ -54,12 +54,13 @@ clipping booster and variable noise source.
 
 WASP is now part of the hydrogen drum machine.
 
-%package -n devel
+%package devel
 Summary:    Hydrogen header files
 License:    GPLv2+
 Requires:   hydrogen
+Obsoletes:  devel <= 0.9.7-9
 
-%description -n devel
+%description devel
 Header files for the hydrogen drum machine.
 
 %prep
@@ -142,6 +143,7 @@ mv $RPM_BUILD_ROOT/usr/man/man1/hydrogen.1 $RPM_BUILD_ROOT%{_mandir}/man1/hydrog
 * Thu Apr 04 2019 Nils Philippsen <nils@tiptoe.de>
 - rebuild to fix GUI glitch
 - use spaces for formatting
+- rename 'devel' subpackage to 'hydrogen-devel' (d'oh)
 
 * Fri Feb 01 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.9.7-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild