diff --git a/pkgs/os-specific/linux/pam/builder.sh b/pkgs/os-specific/linux/pam/builder.sh
index 0ccc40c7c0ea..531ae2c0b907 100644
--- a/pkgs/os-specific/linux/pam/builder.sh
+++ b/pkgs/os-specific/linux/pam/builder.sh
@@ -2,4 +2,6 @@ source $stdenv/setup
 
 export CRACKLIB_DICTPATH=$cracklib/lib
 
+configureFlags="--enable-includedir=$out/include"
+
 genericBuild