diff --git a/package/netopeer2/netopeer2.mk b/package/netopeer2/netopeer2.mk
index 10a13dfda9..be5ffd2be7 100644
--- a/package/netopeer2/netopeer2.mk
+++ b/package/netopeer2/netopeer2.mk
@@ -13,11 +13,28 @@ NETOPEER2_DEPENDENCIES = libnetconf2 libyang sysrepo host-sysrepo
 
 NETOPEER2_CONF_OPTS = -DBUILD_CLI=$(if $(BR2_PACKAGE_NETOPEER2_CLI),ON,OFF)
 
-NETOPEER2_MAKE_ENV = SYSREPOCTL_EXECUTABLE=$(HOST_DIR)/bin/sysrepoctl
+# Set a build specific SYSREPO_SHM_PREFIX to ensure we can safely delete the
+# files. This also ensures that concurrent parallel builds will not be
+# affected mutualy.
+NETOPEER2_SYSREPO_SHM_PREFIX = sr_buildroot$(subst /,_,$(CONFIG_DIR))_netopeer2
+
+NETOPEER2_MAKE_ENV = \
+	SYSREPOCTL_EXECUTABLE=$(HOST_DIR)/bin/sysrepoctl \
+	SYSREPO_SHM_PREFIX=$(NETOPEER2_SYSREPO_SHM_PREFIX)
 
 define NETOPEER2_INSTALL_INIT_SYSV
 	$(INSTALL) -m 755 -D package/netopeer2/S52netopeer2 \
 		$(TARGET_DIR)/etc/init.d/S52netopeer2
 endef
 
+# The host sysrepo used to install the netopeer2 modules will leave
+# its shared memory files lingering about. Clean up in its stead...
+# We need to clean up both before and after installation, to catch
+# the case of a previous build that failed before we run that hook.
+define NETOPEER2_CLEANUP
+	rm -f /dev/shm/$(NETOPEER2_SYSREPO_SHM_PREFIX)*
+endef
+NETOPEER2_PRE_INSTALL_TARGET_HOOKS += NETOPEER2_CLEANUP
+NETOPEER2_POST_INSTALL_TARGET_HOOKS += NETOPEER2_CLEANUP
+
 $(eval $(cmake-package))