diff --git a/apiprinters.asp b/apiprinters.asp
index cbc27f1..3f0548b 100644
--- a/apiprinters.asp
+++ b/apiprinters.asp
@@ -15,7 +15,8 @@ Response.AddHeader "Expires", "0"
 Dim strSQL, rs, jsonOutput, isFirst
 
 strSQL = "SELECT p.printerid, p.printerwindowsname, p.printercsfname, p.fqdn, p.ipaddress, " & _
-         "v.vendor, m.modelnumber, p.isactive, ma.alias, ma.machinenumber, p.installpath " & _
+         "v.vendor, m.modelnumber, p.isactive, ma.alias, ma.machinenumber, p.installpath, " & _
+         "p.mapleft, p.maptop " & _
          "FROM printers p " & _
          "LEFT JOIN models m ON p.modelid = m.modelnumberid " & _
          "LEFT JOIN vendors v ON m.vendorid = v.vendorid " & _
@@ -159,6 +160,25 @@ Do While Not rs.EOF
         jsonOutput = jsonOutput & vbCrLf & "    ""modelnumber"": """ & model & ""","
         jsonOutput = jsonOutput & vbCrLf & "    ""machinename"": """ & machineName & ""","
         jsonOutput = jsonOutput & vbCrLf & "    ""installpath"": """ & installPath & ""","
+
+        ' mapleft / maptop are nullable INTs (pixel coords on the site map
+        ' for printerinstallermap.asp + PrinterInstallerMap.exe). Emit JSON
+        ' literal null when the column is NULL so consumers can detect "no
+        ' map coords for this printer" without resorting to magic numbers.
+        Dim mapLeftVal, mapTopVal
+        If IsNull(rs("mapleft")) Then
+            mapLeftVal = "null"
+        Else
+            mapLeftVal = CStr(rs("mapleft"))
+        End If
+        If IsNull(rs("maptop")) Then
+            mapTopVal = "null"
+        Else
+            mapTopVal = CStr(rs("maptop"))
+        End If
+        jsonOutput = jsonOutput & vbCrLf & "    ""mapleft"": " & mapLeftVal & ","
+        jsonOutput = jsonOutput & vbCrLf & "    ""maptop"": " & mapTopVal & ","
+
         jsonOutput = jsonOutput & vbCrLf & "    ""isactive"": " & LCase(CStr(CBool(rs("isactive"))))
         jsonOutput = jsonOutput & vbCrLf & "  }"
     End If