diff --git a/src/functions.php b/src/functions.php
index 1384e67d7..e2ccae785 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -52,7 +52,7 @@
  *
  * Adding a registered logger is a NOP.
  */
-function add_logger(LoggerInterface $logger): void
+function addLogger(LoggerInterface $logger): void
 {
     PsrLogAdapter::addLogger($logger);
 }
@@ -62,7 +62,7 @@ function add_logger(LoggerInterface $logger): void
  *
  * Removing an unregistered logger is a NOP.
  */
-function remove_logger(LoggerInterface $logger): void
+function removeLogger(LoggerInterface $logger): void
 {
     PsrLogAdapter::removeLogger($logger);
 }
diff --git a/tests/PsrLogAdapterTest.php b/tests/PsrLogAdapterTest.php
index effb669e9..e30010557 100644
--- a/tests/PsrLogAdapterTest.php
+++ b/tests/PsrLogAdapterTest.php
@@ -11,9 +11,9 @@
 use Psr\Log\LogLevel;
 
 use function func_get_args;
-use function MongoDB\add_logger;
+use function MongoDB\addLogger;
 use function MongoDB\Driver\Monitoring\mongoc_log;
-use function MongoDB\remove_logger;
+use function MongoDB\removeLogger;
 use function sprintf;
 
 class PsrLogAdapterTest extends BaseTestCase
@@ -39,12 +39,12 @@ public function testAddAndRemoveLoggerFunctions(): void
         mongoc_log(LogSubscriber::LEVEL_INFO, 'domain1', 'info1');
         PsrLogAdapter::writeLog(PsrLogAdapter::LEVEL_INFO, 'domain2', 'info2');
 
-        add_logger($logger);
+        addLogger($logger);
 
         mongoc_log(LogSubscriber::LEVEL_INFO, 'domain3', 'info3');
         PsrLogAdapter::writeLog(PsrLogAdapter::LEVEL_INFO, 'domain4', 'info4');
 
-        remove_logger($logger);
+        removeLogger($logger);
 
         mongoc_log(LogSubscriber::LEVEL_INFO, 'domain5', 'info5');
         PsrLogAdapter::writeLog(PsrLogAdapter::LEVEL_INFO, 'domain6', 'info6');