diff --git a/includes/export.form.inc b/includes/export.form.inc
index 0fe3b14..ef39083 100644
--- a/includes/export.form.inc
+++ b/includes/export.form.inc
@@ -245,7 +245,7 @@ function islandora_datastreams_io_export_form_submit(array $form, array &$form_s
     }
     else {
       $bad_pids = $good_pids = array();
-      $pids_arr = explode("\n", $pids);
+      $pids_arr = explode(PHP_EOL, $pids);
       foreach ($pids_arr as $pid) {
         $pid = str_replace("\\r", "", trim($pid));
         $islandora_object = islandora_object_load($pid);
diff --git a/includes/relationships.form.inc b/includes/relationships.form.inc
index a3f0549..bdb4a77 100644
--- a/includes/relationships.form.inc
+++ b/includes/relationships.form.inc
@@ -198,7 +198,7 @@ function islandora_datastreams_io_relationships_form_submit(array $form, array &
   if ($pids) {
     $bad_pids = $good_pids = $relationship_skipped = array();
     $updated_count = 0;
-    $pids_arr = explode("\n", $pids);
+    $pids_arr = explode(PHP_EOL, $pids);
     $operation = $form_state['values']['operation'];
     $namespace = $form_state['values']['namespace'];
     $predicate = $form_state['values']['predicate'];
diff --git a/includes/transform.form.inc b/includes/transform.form.inc
index d4b1991..ffedb78 100644
--- a/includes/transform.form.inc
+++ b/includes/transform.form.inc
@@ -223,7 +223,7 @@ function islandora_datastreams_io_transform_form_submit(array $form, array &$for
     $pids = islandora_datastreams_io_pids_namespace_accessible($pids);
     $bad_pids = $skipped = array();
     $updated_count = 0;
-    $pids_arr = explode("\r\n", $pids);
+    $pids_arr = explode(PHP_EOL, $pids);
 
     $transform = '';
     // ONLY use the $_FILE if the $selected_dsid does not contain "*"
diff --git a/includes/update_label.form.inc b/includes/update_label.form.inc
index cbd7dc9..63dd70a 100644
--- a/includes/update_label.form.inc
+++ b/includes/update_label.form.inc
@@ -146,7 +146,7 @@ function islandora_datastreams_io_update_label_form_submit(array $form, array &$
   if ($pids) {
     $bad_pids = $skipped = array();
     $updated_count = 0;
-    $pids_arr = explode("\r\n", $pids);
+    $pids_arr = explode(PHP_EOL, $pids);
 
     foreach ($pids_arr as $pid) {
       $pid = trim($pid);
diff --git a/includes/utilities.inc b/includes/utilities.inc
index 456c709..5cdd8d6 100644
--- a/includes/utilities.inc
+++ b/includes/utilities.inc
@@ -273,7 +273,7 @@ function islandora_datastreams_io_mimetype_of_file($file) {
  */
 function islandora_datastreams_io_pids_namespace_accessible($pids) {
   module_load_include('inc', 'islandora', 'includes/utilities');
-  $inspect_pids = explode("\n", $pids);
+  $inspect_pids = explode(PHP_EOL, $pids);
   $return_pids = array();
   foreach ($inspect_pids as $pid) {
     $pid = trim($pid);
@@ -408,7 +408,7 @@ function islandora_datastreams_io_pids_report_markup($form_values) {
         break;
     }
     $temp_pids_file = file_get_contents($temp_pids_filename);
-    $temp_pids_file_as_arr = explode("\n", $temp_pids_file);
+    $temp_pids_file_as_arr = explode(PHP_EOL, $temp_pids_file);
 
     foreach ($temp_pids_file_as_arr as $key => $pid) {
       $temp_pids_file_as_arr[$key] = l($pid, 'islandora/object/' . $pid,
@@ -472,4 +472,4 @@ function islandora_datastreams_io_do_mods_2_dc($pid, $mods_to_dc_transform) {
     return (islandora_datastreams_io_transform_datastream($islandora_object,
         'MODS', 'DC', $mods_to_dc_transform));
   }
-}
\ No newline at end of file
+}