diff --git a/postgresql12.changes b/postgresql12.changes
index 057bd39..8e288e8 100644
--- a/postgresql12.changes
+++ b/postgresql12.changes
@@ -1,7 +1,9 @@
 -------------------------------------------------------------------
-Fri Nov 20 09:50:09 UTC 2020 - Reinhard Max <max@suse.com>
+Fri Nov 20 11:51:37 UTC 2020 - Reinhard Max <max@suse.com>
 
 - bsc#1178961: %ghost the symlinks to pg_config and ecpg.
+- BuildRequire libpq5 and libecpg6 when not building them to avoid
+  dangling symlinks in the devel package.
 
 -------------------------------------------------------------------
 Wed Nov 11 12:04:35 UTC 2020 - Reinhard Max <max@suse.com>
diff --git a/postgresql12.spec b/postgresql12.spec
index 9c6a2f7..889f897 100644
--- a/postgresql12.spec
+++ b/postgresql12.spec
@@ -73,6 +73,10 @@ BuildRequires:  timezone
 BuildRequires:  zlib-devel
 %bcond_without  selinux
 %bcond_without  icu
+%if  !%buildlibs
+BuildRequires:  %libecpg
+BuildRequires:  %libpq
+%endif
 %if 0%{?suse_version} >= 1300
 %bcond_without  systemd
 %bcond_without  systemd_notify