diff --git a/edit.php b/edit.php
index 5f770e7..299b265 100644
--- a/edit.php
+++ b/edit.php
@@ -15,7 +15,8 @@
  * @license		 GPLv3 <http://www.gnu.org/licenses/gpl.txt>
  */
 
-session_start();
+if (!isset($_SESSION))
+	session_start();
 if (isset($_SESSION["oauth_token"])) {
 	$file = $_SESSION["file"];
 	$venues = $_SESSION["venues"];
diff --git a/edit_csv.php b/edit_csv.php
index 61494c8..9265532 100644
--- a/edit_csv.php
+++ b/edit_csv.php
@@ -15,7 +15,8 @@
  * @license		 GPLv3 <http://www.gnu.org/licenses/gpl.txt>
  */
 
-session_start();
+if (!isset($_SESSION))
+	session_start();
 if (isset($_SESSION["oauth_token"])) {
 	$oauth_token = $_SESSION["oauth_token"];
 	$file = $_SESSION["file"];
diff --git a/flag_csv.php b/flag_csv.php
index 6748fde..67f51cd 100644
--- a/flag_csv.php
+++ b/flag_csv.php
@@ -15,7 +15,8 @@
  * @license		 GPLv3 <http://www.gnu.org/licenses/gpl.txt>
  */
 
-session_start();
+if (!isset($_SESSION))
+	session_start();
 if (isset($_SESSION["oauth_token"])) {
 	$oauth_token = $_SESSION["oauth_token"];
 	$file = $_SESSION["file"];
diff --git a/index.php b/index.php
index 4a13ab6..3b8f388 100755
--- a/index.php
+++ b/index.php
@@ -63,7 +63,8 @@
 
 	// Otherwise save the token in a session variable and redirect browser
 	} else {
-		session_start();
+		if (!isset($_SESSION))
+			session_start();
 		$_SESSION["oauth_token"] = $token;
 
 		// Save and configure a cookie to expire in 15 days
diff --git a/load.php b/load.php
index 935b71d..262bf48 100644
--- a/load.php
+++ b/load.php
@@ -15,7 +15,8 @@
  * @license		 GPLv3 <http://www.gnu.org/licenses/gpl.txt>
  */
 
-session_start();
+if (!isset($_SESSION))
+	session_start();
 if (!isset($_SESSION["oauth_token"])) {
 	header('Location: index.php');
 }
diff --git a/load_csv.php b/load_csv.php
index 3cfa118..0aebfd9 100755
--- a/load_csv.php
+++ b/load_csv.php
@@ -15,7 +15,8 @@
  * @license		 GPLv3 <http://www.gnu.org/licenses/gpl.txt>
  */
  
-session_start();
+if (!isset($_SESSION))
+	session_start();
 if (!isset($_SESSION["oauth_token"])) {
 	header('Location: index.php');
 }
diff --git a/main.php b/main.php
index 76f7286..c94e123 100644
--- a/main.php
+++ b/main.php
@@ -15,7 +15,8 @@
  * @license		 GPLv3 <http://www.gnu.org/licenses/gpl.txt>
  */
 
-session_start();
+if (!isset($_SESSION))
+	session_start();
 if (isset($_SESSION["oauth_token"])) {
 	$oauth_token = $_SESSION["oauth_token"];
 } else {