diff --git a/SDL_mixer.spec b/SDL_mixer.spec
index 27025d3..50780e7 100644
--- a/SDL_mixer.spec
+++ b/SDL_mixer.spec
@@ -22,7 +22,7 @@ BuildRequires:  flac-devel libSDL-devel libmikmod-devel libvorbis-devel
 Summary:        Sample Mixer Library for SDL
 Version:        1.2.11
 Release:        7
-License:        LGPLv2.1+
+License:        LGPL-2.1+
 Group:          System/Libraries
 # removed VisualC.zip, Watcom-OS2.zip, Xcode.tar.gz from upstream tarball [bnc#508180]
 # removed libmikmod-3.1.12.zip
@@ -41,7 +41,7 @@ Timidity MIDI, and SMPEG MP3 libraries.
 %package -n libSDL_mixer-1_2-0
 Summary:        Sample Mixer Library for SDL
 Group:          System/Libraries
-License:        LGPLv2.1+
+License:        LGPL-2.1+
 Provides:       SDL_mixer = %{version}
 Obsoletes:      SDL_mixer <= %{version}
 Recommends:     %(rpm -qf %{_libdir}/libmikmod.so.[0-9] --qf '%{NAME}')
@@ -60,7 +60,7 @@ Timidity MIDI, and SMPEG MP3 libraries.
 
 
 %package -n libSDL_mixer-devel
-License:        LGPLv2.1+
+License:        LGPL-2.1+
 Requires:       %{name} = %{version} SDL-devel
 Summary:        Sample Mixer Library for SDL - files mandatory for development
 Group:          Development/Libraries/C and C++