diff --git a/speech-dispatcher.spec b/speech-dispatcher.spec
index 39f4d1d..e89a24a 100644
--- a/speech-dispatcher.spec
+++ b/speech-dispatcher.spec
@@ -1,6 +1,6 @@
 Name:          speech-dispatcher
 Version:       0.8.8
-Release:       2mamba
+Release:       3mamba
 Summary:       A high-level device independent layer for speech synthesis
 Group:         System/Multimedia
 Vendor:        openmamba
@@ -58,7 +58,6 @@ The application neither needs to talk to the devices directly nor to handle conc
 %package -n libspeechd
 Group:         Development/Libraries
 Summary:       Shared libraries provided by %{name}
-Obsoletes:     opentts-devel
 
 %description -n libspeechd
 The goal of Speech Dispatcher project is to provide a high-level device independent layer for speech synthesis through a simple, stable and well documented interface.
@@ -68,8 +67,9 @@ This package contains the shared libraries.
 Group:         Development/Libraries
 Summary:       Static libraries and headers for %{name}
 Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
-Provides:      libspeechd-devel
-Obsoletes:     %{name}-devel
+Requires:      libspeechd = %{?epoch:%epoch:}%{version}-%{release}
+Provides:      speech-dispatcher-devel
+Obsoletes:     speech-dispatcher-devel
 Obsoletes:     opentts-devel
 
 %description -n libspeechd-devel
@@ -199,6 +199,9 @@ exit 0
 #%defattr(-,root,root)
 
 %changelog
+* Sun Dec 03 2017 Silvan Calarco <silvan.calarco@mambasoft.it> 0.8.8-3mamba
+- libspeechd-devel: provide and obsolete speech-dispatcher-devel
+
 * Sun Nov 19 2017 Silvan Calarco <silvan.calarco@mambasoft.it> 0.8.8-2mamba
 - added libspeechd and libspeechd-devel (obsoleting speech-dispatcher-devel)