diff --git a/ext/mime/main.php b/ext/mime/main.php
index c98adde5..de0f22e9 100644
--- a/ext/mime/main.php
+++ b/ext/mime/main.php
@@ -26,7 +26,7 @@ class MimeSystem extends Extension
         // adjustment needs to be made to the mime types.
 
         if ($this->get_version(self::VERSION) < 1) {
-            if ($database->transaction) {
+            if ($database->is_transaction_open()) {
                 // Each of these commands could hit a lot of data, combining
                 // them into one big transaction would not be a good idea.
                 $database->commit();
diff --git a/ext/upgrade/main.php b/ext/upgrade/main.php
index 1cb8530d..0974631e 100644
--- a/ext/upgrade/main.php
+++ b/ext/upgrade/main.php
@@ -186,7 +186,7 @@ class Upgrade extends Extension
 
         if ($this->get_version("db_version") < 21) {
             log_info("upgrade", "Setting predictable media values for known file types");
-            if ($database->transaction) {
+            if ($database->is_transaction_open()) {
                 // Each of these commands could hit a lot of data, combining
                 // them into one big transaction would not be a good idea.
                 $database->commit();