diff --git a/openssl-pkcs11.spec b/openssl-pkcs11.spec
index 8dae3fb260a23a2a20f091645e9c63b9e4cf43e3..589fd64af1aa89c396eb50bf96756ed81c67419c 100644
--- a/openssl-pkcs11.spec
+++ b/openssl-pkcs11.spec
@@ -1,6 +1,6 @@
 Name:           openssl-pkcs11
 Version:        0.4.11
-Release:        3
+Release:        4
 Summary:        A PKCS#11 engine for use with OpenSSL
 License:        LGPLv2+ and BSD
 URL:            https://github.com/OpenSC/libp11
@@ -41,13 +41,19 @@ make %{?_smp_mflags} V=1
 
 %install
 rm -rf %{buildroot}
-strip examples/.libs/*
 mkdir -p %{buildroot}%{_libdir}/engines-1.1
 %make_install
 %delete_la
 
+#strip binary files
+pushd %{_builddir}/libp11-%{version}
+find src/.libs -type f -name '*.so*' -exec strip '{}' ';'
+strip examples/.libs/*
+popd
+
 %check
 make check
+strip %{_builddir}/libp11-%{version}/examples/.libs/lt-*
 
 %pre
 
@@ -74,6 +80,9 @@ make check
 %exclude %{_defaultdocdir}/libp11/*
 
 %changelog
+* Tue Mar 30 2021 panxiaohe <panxiaohe@huawei.com> - 0.4.11-4
+- strip binary files
+
 * Mon Mar 22 2021 panxiaohe <panxiaohe@huawei.com> - 0.4.11-3
 - strip binary files in examples directory
 - remove strip secure compile option