diff --git a/module/CLI/src/ConfigProvider.php b/module/CLI/src/ConfigProvider.php
index ba3a5747..45fd4755 100644
--- a/module/CLI/src/ConfigProvider.php
+++ b/module/CLI/src/ConfigProvider.php
@@ -3,13 +3,12 @@ declare(strict_types=1);
 
 namespace Shlinkio\Shlink\CLI;
 
-use Zend\Config\Factory;
-use Zend\Stdlib\Glob;
+use function Shlinkio\Shlink\Common\loadConfigFromGlob;
 
 class ConfigProvider
 {
     public function __invoke()
     {
-        return Factory::fromFiles(Glob::glob(__DIR__ . '/../config/{,*.}config.php', Glob::GLOB_BRACE));
+        return loadConfigFromGlob(__DIR__ . '/../config/{,*.}config.php');
     }
 }
diff --git a/module/Common/functions/functions.php b/module/Common/functions/functions.php
index e07603ce..aab0ef26 100644
--- a/module/Common/functions/functions.php
+++ b/module/Common/functions/functions.php
@@ -3,6 +3,9 @@ declare(strict_types=1);
 
 namespace Shlinkio\Shlink\Common;
 
+use Zend\Config\Factory;
+use Zend\Stdlib\Glob;
+
 use function getenv;
 use function json_decode as spl_json_decode;
 use function json_last_error;
@@ -59,3 +62,11 @@ function json_decode(string $json, int $depth = 512, int $options = 0): array
 
     return $data;
 }
+
+/**
+ * Loads configuration files which match provided glob pattern, and returns the merged result as array
+ */
+function loadConfigFromGlob(string $globPattern): array
+{
+    return Factory::fromFiles(Glob::glob($globPattern, Glob::GLOB_BRACE));
+}
diff --git a/module/Common/src/ConfigProvider.php b/module/Common/src/ConfigProvider.php
index 0d0c8a0d..7d900823 100644
--- a/module/Common/src/ConfigProvider.php
+++ b/module/Common/src/ConfigProvider.php
@@ -3,13 +3,10 @@ declare(strict_types=1);
 
 namespace Shlinkio\Shlink\Common;
 
-use Zend\Config\Factory;
-use Zend\Stdlib\Glob;
-
 class ConfigProvider
 {
     public function __invoke(): array
     {
-        return Factory::fromFiles(Glob::glob(__DIR__ . '/../config/{,*.}config.php', Glob::GLOB_BRACE));
+        return loadConfigFromGlob(__DIR__ . '/../config/{,*.}config.php');
     }
 }
diff --git a/module/Core/src/ConfigProvider.php b/module/Core/src/ConfigProvider.php
index a58f0c55..b8d01a7a 100644
--- a/module/Core/src/ConfigProvider.php
+++ b/module/Core/src/ConfigProvider.php
@@ -3,13 +3,12 @@ declare(strict_types=1);
 
 namespace Shlinkio\Shlink\Core;
 
-use Zend\Config\Factory;
-use Zend\Stdlib\Glob;
+use function Shlinkio\Shlink\Common\loadConfigFromGlob;
 
 class ConfigProvider
 {
     public function __invoke()
     {
-        return Factory::fromFiles(Glob::glob(__DIR__ . '/../config/{,*.}config.php', Glob::GLOB_BRACE));
+        return loadConfigFromGlob(__DIR__ . '/../config/{,*.}config.php');
     }
 }
diff --git a/module/EventDispatcher/src/ConfigProvider.php b/module/EventDispatcher/src/ConfigProvider.php
index 70b6ab2e..88f2045e 100644
--- a/module/EventDispatcher/src/ConfigProvider.php
+++ b/module/EventDispatcher/src/ConfigProvider.php
@@ -3,13 +3,12 @@ declare(strict_types=1);
 
 namespace Shlinkio\Shlink\EventDispatcher;
 
-use Zend\Config\Factory;
-use Zend\Stdlib\Glob;
+use function Shlinkio\Shlink\Common\loadConfigFromGlob;
 
 class ConfigProvider
 {
     public function __invoke()
     {
-        return Factory::fromFiles(Glob::glob(__DIR__ . '/../config/{,*.}config.php', Glob::GLOB_BRACE));
+        return loadConfigFromGlob(__DIR__ . '/../config/{,*.}config.php');
     }
 }
diff --git a/module/IpGeolocation/src/ConfigProvider.php b/module/IpGeolocation/src/ConfigProvider.php
index 2801342b..7b8b6e7e 100644
--- a/module/IpGeolocation/src/ConfigProvider.php
+++ b/module/IpGeolocation/src/ConfigProvider.php
@@ -5,11 +5,12 @@ namespace Shlinkio\Shlink\IpGeolocation;
 
 use Zend\Config\Factory;
 use Zend\Stdlib\Glob;
+use function Shlinkio\Shlink\Common\loadConfigFromGlob;
 
 class ConfigProvider
 {
     public function __invoke(): array
     {
-        return Factory::fromFiles(Glob::glob(__DIR__ . '/../config/{,*.}config.php', Glob::GLOB_BRACE));
+        return loadConfigFromGlob(__DIR__ . '/../config/{,*.}config.php');
     }
 }
diff --git a/module/IpGeolocation/test/ConfigProviderTest.php b/module/IpGeolocation/test/ConfigProviderTest.php
new file mode 100644
index 00000000..a6dbdcbd
--- /dev/null
+++ b/module/IpGeolocation/test/ConfigProviderTest.php
@@ -0,0 +1,28 @@
+<?php
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\IpGeolocation;
+
+use PHPUnit\Framework\TestCase;
+use Shlinkio\Shlink\IpGeolocation\ConfigProvider;
+use Zend\ServiceManager\AbstractFactory\ConfigAbstractFactory;
+
+class ConfigProviderTest extends TestCase
+{
+    /** @var ConfigProvider */
+    private $configProvider;
+
+    public function setUp(): void
+    {
+        $this->configProvider = new ConfigProvider();
+    }
+
+    /** @test */
+    public function configIsReturned(): void
+    {
+        $config = $this->configProvider->__invoke();
+
+        $this->assertArrayHasKey('dependencies', $config);
+        $this->assertArrayHasKey(ConfigAbstractFactory::class, $config);
+    }
+}