diff --git a/pkgs/servers/dns/pdns/default.nix b/pkgs/servers/dns/pdns/default.nix
index 45c15e7edf24..0cec5f6e7446 100644
--- a/pkgs/servers/dns/pdns/default.nix
+++ b/pkgs/servers/dns/pdns/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   ];
 
   # Configure phase requires 64-bit time_t even on 32-bit platforms.
-  NIX_CFLAGS_COMPILE = lib.optionals stdenv.hostPlaftorm.is32bit [
+  NIX_CFLAGS_COMPILE = lib.optionals stdenv.hostPlatform.is32bit [
     "-D_TIME_BITS=64" "-D_FILE_OFFSET_BITS=64"
   ];