diff --git a/gcc11-fix-error.patch b/gcc11-fix-error.patch
new file mode 100644
index 0000000..c578cda
--- /dev/null
+++ b/gcc11-fix-error.patch
@@ -0,0 +1,13 @@
+diff --git a/include/sal/log.hxx b/include/sal/log.hxx
+index 6bb0d1b..5691888 100644
+--- a/include/sal/log.hxx
++++ b/include/sal/log.hxx
+@@ -191,7 +191,7 @@ inline char const * unwrapStream(SAL_UNUSED_PARAMETER StreamIgnore const &) {
+     (::std::ostringstream() << stream).str()
+ #else
+ #define SAL_STREAM(stream) \
+-    (dynamic_cast< ::std::ostringstream & >(::std::ostringstream() << stream).str())
++    (dynamic_cast< ::std::ostringstream && >(::std::ostringstream() << stream).str())
+ #endif
+ 
+ /**
diff --git a/libreoffice.changes b/libreoffice.changes
index 2579c51..cdbfd93 100644
--- a/libreoffice.changes
+++ b/libreoffice.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue May 18 06:59:06 UTC 2021 - Martin Liška <mliska@suse.cz>
+
+- Add gcc11-fix-error.patch as fix for boo#1186110.
+
 -------------------------------------------------------------------
 Fri May 14 07:04:57 UTC 2021 - Markéta Machová <mmachova@suse.com>
 
diff --git a/libreoffice.spec b/libreoffice.spec
index 764fcf1..c46b047 100644
--- a/libreoffice.spec
+++ b/libreoffice.spec
@@ -103,6 +103,8 @@ Patch3:         mediawiki-no-broken-help.diff
 Patch4:         use-comphelper.patch
 # PATCH-FIX-UPSTREAM https://github.com/LibreOffice/core/commit/9fed7b07af44792012028eb57900640a5ee833cb tdf#141930 document set as unmodified if editengine didn't modify on keyevent
 Patch5:         bsc1184961.patch
+# PATCH-FIX-OPENSUSE boo#1186110 fix GCC 11 error
+Patch6:         gcc11-fix-error.patch
 # Build with java 8
 Patch101:       0001-Revert-java-9-changes.patch
 # try to save space by using hardlinks
@@ -973,6 +975,7 @@ Provides %{langname} translations and additional resources (help files, etc.) fo
 %patch3
 %patch4 -p1
 %patch5 -p1
+%patch6 -p1
 %if 0%{?suse_version} < 1500
 %patch101 -p1
 %endif