diff --git a/postgresql12.changes b/postgresql12.changes
index 4e28972..f76920d 100644
--- a/postgresql12.changes
+++ b/postgresql12.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri Feb 19 15:30:08 UTC 2021 - Reinhard Max <max@suse.com>
+
+- boo#1179945: Disable icu for PostgreSQL 10 (and older) on TW.
+
 -------------------------------------------------------------------
 Wed Feb 10 13:32:07 UTC 2021 - Reinhard Max <max@suse.com>
 
diff --git a/postgresql12.spec b/postgresql12.spec
index db5ff20..6cb623e 100644
--- a/postgresql12.spec
+++ b/postgresql12.spec
@@ -72,7 +72,11 @@ BuildRequires:  tcl-devel
 BuildRequires:  timezone
 BuildRequires:  zlib-devel
 %bcond_without  selinux
+%if %pgmajor > 10 || 0%{?suse_version} <= 1500
 %bcond_without  icu
+%else
+%bcond_with icu
+%endif
 %if  !%buildlibs
 BuildRequires:  %libecpg
 BuildRequires:  %libpq