diff --git a/hydrogen.spec b/hydrogen.spec
index 57992d2..1c0577e 100644
--- a/hydrogen.spec
+++ b/hydrogen.spec
@@ -12,7 +12,7 @@ Source0:      http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.gz
 # Temporary patch since upstream already switched from scons to cmake in trunk
 #Patch2:       hydrogen-lrdf-pkg.patch
 #Patch3:       hydrogen-format-security.patch
-Patch4:		hydrogen-desktop.patch
+Patch4:       hydrogen-desktop.patch
 License:      GPLv2+
 
 
@@ -55,9 +55,9 @@ clipping booster and variable noise source.
 WASP is now part of the hydrogen drum machine.
 
 %package -n devel
-Summary:	Hydrogen header files
-License:	GPLv2+
-Requires:	hydrogen
+Summary:    Hydrogen header files
+License:    GPLv2+
+Requires:   hydrogen
 
 %description -n devel
 Header files for the hydrogen drum machine.
@@ -141,6 +141,7 @@ mv $RPM_BUILD_ROOT/usr/man/man1/hydrogen.1 $RPM_BUILD_ROOT%{_mandir}/man1/hydrog
 %changelog
 * Thu Apr 04 2019 Nils Philippsen <nils@tiptoe.de>
 - rebuild to fix GUI glitch
+- use spaces for formatting
 
 * Fri Feb 01 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.9.7-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild