diff --git a/jsoncpp.spec b/jsoncpp.spec
index d45a06c..2304022 100644
--- a/jsoncpp.spec
+++ b/jsoncpp.spec
@@ -3,6 +3,10 @@
 
 %global jsondir json
 
+# Avoid accidental so-name bumps.
+%global sover 21
+
+
 Name:           jsoncpp
 Version:        1.9.0
 Release:        1%{?dist}
@@ -12,9 +16,9 @@ License:        Public Domain or MIT
 URL:            https://github.com/open-source-parsers/%{name}
 Source0:        %{url}/archive/%{version}.tar.gz#/%{name}-%{version}.tar.gz
 
+BuildRequires:  cmake >= 3.1
 BuildRequires:  gcc
 BuildRequires:  gcc-c++
-BuildRequires:  cmake >= 3.1
 BuildRequires:  python3-devel
 
 %description
@@ -103,7 +107,8 @@ hardlink -cfv %{buildroot}%{_docdir}/%{name}
 %if %{with jsoncpp_enables_doc}
 %exclude %{_docdir}/%{name}/html
 %endif
-%{_libdir}/lib%{name}.so.*
+%{_libdir}/lib%{name}.so.%{sover}*
+%{_libdir}/lib%{name}.so.%{version}
 
 
 %files devel