diff --git a/gsasl.spec b/gsasl.spec
index 0b2bf59..f3a7857 100644
--- a/gsasl.spec
+++ b/gsasl.spec
@@ -40,7 +40,7 @@ BuildRequires:  pkgconfig(libntlm) >= 0.3.5
 %description
 GNU SASL is an implementation of the Simple Authentication and
 Security Layer framework and a few common SASL mechanisms. SASL is
-used by network servers (e.g., IMAP, SMTP) to request authentication
+used by network servers (e.g. IMAP, SMTP) to request authentication
 from clients, and in clients to authenticate against servers.
 
 %package -n libgsasl18
@@ -51,7 +51,7 @@ Group:          System/Libraries
 %description -n libgsasl18
 GNU SASL is an implementation of the Simple Authentication and
 Security Layer framework and a few common SASL mechanisms. SASL is
-used by network servers (e.g., IMAP, SMTP) to request authentication
+used by network servers (e.g. IMAP, SMTP) to request authentication
 from clients, and in clients to authenticate against servers.
 
 %package devel
@@ -62,11 +62,13 @@ Requires:       pkgconfig(krb5-gssapi)
 Requires:       pkgconfig(libgcrypt)
 Requires:       pkgconfig(libidn)
 Requires:       pkgconfig(libntlm)
+Obsoletes:      libgsasl-devel < %{version}-%{release}
+Provides:       libgsasl-devel = %{version}-%{release}
 
 %description devel
 GNU SASL is an implementation of the Simple Authentication and
 Security Layer framework and a few common SASL mechanisms. SASL is
-used by network servers (e.g., IMAP, SMTP) to request authentication
+used by network servers (e.g. IMAP, SMTP) to request authentication
 from clients, and in clients to authenticate against servers.
 
 %lang_package