diff --git a/nbdkit.spec b/nbdkit.spec
index 8c4e0cc..faee8f9 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -46,7 +46,7 @@ ExclusiveArch:  x86_64
 
 Name:           nbdkit
 Version:        1.25.3
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        NBD server
 
 License:        BSD
@@ -535,6 +535,8 @@ Summary:        VMware VDDK plugin for %{name}
 License:        BSD
 
 Requires:       %{name}-server%{?_isa} = %{version}-%{release}
+# https://bugzilla.redhat.com/show_bug.cgi?id=1931818
+Requires:       libxcrypt-compat
 
 
 %description vddk-plugin
@@ -1211,6 +1213,9 @@ export LIBGUESTFS_TRACE=1
 
 
 %changelog
+* Tue Mar  9 2021 Richard W.M. Jones <rjones@redhat.com> - 1.25.3-3
+- Make nbdkit-vddk-plugin depend on libxcrypt-devel (RHBZ#1931818).
+
 * Thu Mar  4 2021 Richard W.M. Jones <rjones@redhat.com> - 1.25.3-2
 - Remove socat dependency in RHEL 9.