diff --git a/slapi-nis-bz1832190.patch b/slapi-nis-bz1832190.patch
new file mode 100644
index 0000000..570735b
--- /dev/null
+++ b/slapi-nis-bz1832190.patch
@@ -0,0 +1,49 @@
+From e8c3ed416a442f5a431ca48f7ea384a6abc1fa53 Mon Sep 17 00:00:00 2001
+From: Alexander Bokovoy <abokovoy@redhat.com>
+Date: Wed, 6 May 2020 14:08:41 +0300
+Subject: [PATCH] Initialize map lock in NIS plugin as well
+
+Also if ignored_containers_sdn is NULL, we don't really need to check
+whether a write could be ignored. It has to be processed, so bail out
+early with FALSE.
+
+Resolves: rhbz#1832190
+
+Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
+---
+ src/back-shr.c | 4 ++++
+ src/plug-nis.c | 3 +++
+ 2 files changed, 7 insertions(+)
+
+diff --git a/src/back-shr.c b/src/back-shr.c
+index e2b5dd3..c6a181e 100644
+--- a/src/back-shr.c
++++ b/src/back-shr.c
+@@ -2960,6 +2960,10 @@ backend_shr_write_ignore(Slapi_PBlock *pb)
+     int i = 0;
+     PRBool ignore = PR_FALSE;
+ 
++    if (ignored_containers_sdn == NULL) {
++        return ignore;
++    }
++
+     /* Check if the target DN is a subordinates of
+      * on of the ignored containers
+      */
+diff --git a/src/plug-nis.c b/src/plug-nis.c
+index ee90c37..0ce4ae6 100644
+--- a/src/plug-nis.c
++++ b/src/plug-nis.c
+@@ -540,6 +540,9 @@ nis_plugin_init(Slapi_PBlock *pb)
+ 				"error setting up plugin\n");
+ 		return -1;
+ 	}
++
++	init_map_lock();
++
+ 	/* Read global configuration. */
+ 	if ((slapi_pblock_get(pb, SLAPI_PLUGIN_CONFIG_ENTRY,
+ 			      &plugin_entry) == 0) &&
+-- 
+2.25.4
+
diff --git a/slapi-nis.spec b/slapi-nis.spec
index fea2f05..b3de214 100644
--- a/slapi-nis.spec
+++ b/slapi-nis.spec
@@ -11,12 +11,13 @@
 
 Name:		slapi-nis
 Version:	0.56.5
-Release:	1%{?dist}
+Release:	2%{?dist}
 Summary:	NIS Server and Schema Compatibility plugins for Directory Server
 License:	GPLv2
 URL:		http://pagure.io/slapi-nis/
 Source0:	https://releases.pagure.org/slapi-nis/slapi-nis-%{version}.tar.gz
 Source1:	https://releases.pagure.org/slapi-nis/slapi-nis-%{version}.tar.gz.asc
+Patch1:		slapi-nis-bz1832190.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  libtool
@@ -54,6 +55,7 @@ for attributes from multiple entries in the tree.
 
 %prep
 %setup -q
+%patch1 -p1
 
 %build
 autoconf --force
@@ -81,6 +83,9 @@ make check
 %{_sbindir}/nisserver-plugin-defs
 
 %changelog
+* Wed May 06 2020 Alexander Bokovoy <abokovoy@redhat.com> - 0.56.5-2
+- Initialize map locks in NIS plugin to prevent crash
+
 * Mon May 04 2020 Alexander Bokovoy <abokovoy@redhat.com> - 0.56.5-1
 - New upstream release
 - Resolves: rhbz#1751295: (2) When sync-repl is enabled, slapi-nis can deadlock during retrochanglog trimming