diff --git a/vim.spec b/vim.spec
index 0dbafd99..79394fb1 100644
--- a/vim.spec
+++ b/vim.spec
@@ -27,7 +27,7 @@ Summary: The VIM editor
 URL:     http://www.vim.org/
 Name: vim
 Version: %{baseversion}.%{patchlevel}
-Release: 26%{?dist}
+Release: 27%{?dist}
 License: Vim and MIT
 Source0: ftp://ftp.vim.org/pub/vim/unix/vim-%{baseversion}-%{patchlevel}.tar.bz2
 Source1: virc
@@ -431,8 +431,8 @@ autoconf
 sed -e "s+VIMRCLOC	= \$(VIMLOC)+VIMRCLOC	= /etc+" Makefile > Makefile.tmp
 mv -f Makefile.tmp Makefile
 
-export CFLAGS="%{optflags} -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -O0"
-export CXXFLAGS="%{optflags} -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2 -O0"
+export CFLAGS="%{optflags} -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2"
+export CXXFLAGS="%{optflags} -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2"
 
 cp -f os_unix.h os_unix.h.save
 cp -f ex_cmds.c ex_cmds.c.save
@@ -975,6 +975,9 @@ touch %{buildroot}/%{_datadir}/%{name}/vimfiles/doc/tags
 %endif
 
 %changelog
+* Fri Mar 27 2026 Zdenek Dohnal <zdohnal@redhat.com> - 2:8.2.2637-27
+- remove -O0 from FLAGS
+
 * Thu Mar 19 2026 Zdenek Dohnal <zdohnal@redhat.com> - 2:8.2.2637-26
 - RHEL-155438 CVE-2026-28417 vim: Vim: Arbitrary code execution via OS command injection in the netrw plugin
 - RHEL-155423 CVE-2026-28421 vim: Vim: Denial of service and information disclosure via crafted swap file