diff --git a/openjdk-21.spec b/openjdk-21.spec
index 98ce7a842ed6c066f8b52bdd9e7204be6d5916f4..b682445bffc199808adb6c944e16f8d232b7a3a0 100644
--- a/openjdk-21.spec
+++ b/openjdk-21.spec
@@ -83,7 +83,7 @@
 # By default, we build a debug build during main build on JIT architectures
 %if %{with slowdebug}
 %ifarch %{jit_arches}
-%global include_debug_build 0
+%global include_debug_build 1
 %else
 %global include_debug_build 0
 %endif
@@ -905,7 +905,7 @@ Name:    java-21-%{origin}
 Version: %{newjavaver}.%{buildver}
 # This package needs `.rolling` as part of Release so as to not conflict on install with
 # java-X-openjdk. I.e. when latest rolling release is also an LTS release packaged as
-Release: 5
+Release: 6
 
 # java-1.5.0-ibm from jpackage.org set Epoch to 1 for unknown reasons
 # and this change was brought into RHEL-4. java-1.5.0-ibm packages
@@ -1915,6 +1915,9 @@ cjc.mainProgram(args) -- the returns from copy_jdk_configs.lua should not affect
 
 
 %changelog
+* Wed Jun 25 2025 gaoxiang <gaoxiang@kylinos.cn> - 1:21.0.7.6-6
+- enable slowdebug build
+
 * Sat May 17 2025 Benshuai5D <zhangyunbo7@huawei.com> - 1:21.0.7.6-5
 - add heapdump-bug-fix.patch