diff --git a/pkgs/servers/openafs/1.6/module.nix b/pkgs/servers/openafs/1.6/module.nix
index c133161cf576..374046cfdb61 100644
--- a/pkgs/servers/openafs/1.6/module.nix
+++ b/pkgs/servers/openafs/1.6/module.nix
@@ -15,6 +15,9 @@ in stdenv.mkDerivation rec {
 
   hardeningDisable = [ "pic" ];
 
+  # The RANDSTRUCT gcc plugin rewrites structs using designated initializers
+  NIX_CFLAGS_COMPILE = [ "-Wno-error=designated-init" ];
+
   configureFlags = [
     "--with-linux-kernel-build=${kernelBuildDir}"
     "--sysconfdir=/etc"
diff --git a/pkgs/servers/openafs/1.8/module.nix b/pkgs/servers/openafs/1.8/module.nix
index 958fcd578c2b..c60b96f1693e 100644
--- a/pkgs/servers/openafs/1.8/module.nix
+++ b/pkgs/servers/openafs/1.8/module.nix
@@ -18,6 +18,9 @@ in stdenv.mkDerivation rec {
 
   hardeningDisable = [ "pic" ];
 
+  # The RANDSTRUCT gcc plugin rewrites structs using designated initializers
+  NIX_CFLAGS_COMPILE = [ "-Wno-error=designated-init" ];
+
   configureFlags = [
     "--with-linux-kernel-build=${kernelBuildDir}"
     "--sysconfdir=/etc"