diff --git a/conf/defaults.config b/conf/defaults.config
index 615e96d49c..8ce7bee518 100644
--- a/conf/defaults.config
+++ b/conf/defaults.config
@@ -468,9 +468,8 @@ $dbLayoutName = "sql_single";
 
 # For configuration instructions, see:
 # http://webwork.maa.org/wiki/National_Problem_Library
-# The directory containing the national problem library files. Set to "" if no problem
-# library is installed.
-$problemLibrary{root}        = "";
+# Set the location of the library in site.conf
+# These values usually do not need to be edited.
 
 # Problem Library version (currently version 2).
 $problemLibrary{version} = "2";
diff --git a/conf/site.conf.dist b/conf/site.conf.dist
index a9dc5b4fe3..8524b0fe04 100644
--- a/conf/site.conf.dist
+++ b/conf/site.conf.dist
@@ -190,6 +190,17 @@ $mail{smtpSender}            = 'webwork@yourserver.yourschool.edu';
 # Seconds to wait before timing out when connecting to the SMTP server.
 $mail{smtpTimeout}           = 30;
 
+################################################################################
+# Problem library options
+################################################################################
+
+# For configuration instructions, see:
+# http://webwork.maa.org/wiki/National_Problem_Library
+# The directory containing the national problem library files - typically
+# /opt/webwork/libraries/NationalProblemLibrary
+# Set to "" if no problem library is installed.
+$problemLibrary{root}        = "";
+
 ################################################################################
 #Time Zone
 ################################################################################