diff --git a/pkgs/development/libraries/geoip/default.nix b/pkgs/development/libraries/geoip/default.nix
index d93430ac1f5..cb8138dc115 100644
--- a/pkgs/development/libraries/geoip/default.nix
+++ b/pkgs/development/libraries/geoip/default.nix
@@ -17,7 +17,7 @@ in stdenv.mkDerivation {
 
   nativeBuildInputs = [ autoreconfHook ];
 
-  postPatch = ''
+  postConfigure = ''
     find . -name Makefile.in -exec sed -i -r 's#^pkgdatadir\s*=.+$#pkgdatadir = ${dataDir}#' {} \;
   '';