diff --git a/framework/src/Volo.Abp.Settings/Volo/Abp/Settings/SettingProvider.cs b/framework/src/Volo.Abp.Settings/Volo/Abp/Settings/SettingProvider.cs
index 6f5372a4cf..5ef67cbc21 100644
--- a/framework/src/Volo.Abp.Settings/Volo/Abp/Settings/SettingProvider.cs
+++ b/framework/src/Volo.Abp.Settings/Volo/Abp/Settings/SettingProvider.cs
@@ -35,7 +35,7 @@ namespace Volo.Abp.Settings
             //TODO: How to implement setting.IsInherited?
 
             var value = await GetOrNullValueFromProvidersAsync(providers, setting);
-            if (setting.IsEncrypted)
+            if (value != null && setting.IsEncrypted)
             {
                 value = SettingEncryptionService.Decrypt(setting, value);
             }
@@ -84,4 +84,4 @@ namespace Volo.Abp.Settings
             return null;
         }
     }
-}
\ No newline at end of file
+}