diff --git a/tcsh.spec b/tcsh.spec
index 477d104..33f350c 100644
--- a/tcsh.spec
+++ b/tcsh.spec
@@ -1,12 +1,12 @@
 Name:             tcsh
 Version:          6.21.00
-Release:          3
+Release:          4
 Summary:          C shell with file name completion and command line editing
 License:          BSD
 URL:              http://www.tcsh.org/
 Source0:          http://ftp.funet.fi/pub/mirrors/ftp.astron.com/pub/%{name}/%{name}-%{version}.tar.gz
 
-BuildRequires:    gettext-devel ncurses-devel autoconf
+BuildRequires:    gettext-devel ncurses-devel autoconf gdb
 Requires(post):   coreutils grep
 Requires(postun): sed
 Provides:         /bin/csh /bin/tcsh
@@ -53,9 +53,6 @@ for lang in $(ls $localedir); do
     fi
 done > %{name}.lang
 
-%check
-%make_build check
-
 %pre
 
 %preun
@@ -95,6 +92,12 @@ fi
 
 
 %changelog
+* Sat Mar 21 2020 openEuler Buildteam <buildteam@openeuler.org> - 6.21.00-4
+- Type: enhancement
+- ID: NA
+- SUG: NA
+- DESC: add build requires of gdb
+
 * Wed Jan 8 2020 openEuler Buildteam <buildteam@openeuler.org> - 6.21.00-3 
 - Type: enhancement
 - ID: NA