diff --git a/app/src/main/java/com/gamedog/vididin/login/AccountManager.kt b/app/src/main/java/com/gamedog/vididin/login/AccountManager.kt
index 89e99f4..08880a8 100644
--- a/app/src/main/java/com/gamedog/vididin/login/AccountManager.kt
+++ b/app/src/main/java/com/gamedog/vididin/login/AccountManager.kt
@@ -144,7 +144,7 @@ object AccountManager {
 
     fun adjustDiamond(diamondCost: Int): Boolean {
         mAccount?.let {
-            if (it.diamondCount > diamondCost) {
+            if (it.diamondCount >= diamondCost) {
                 it.diamondCount -= diamondCost
                 saveAccountInfo()
                 NotifyMan.instance().sendEvent(VididinEvents.Event_Account_Diamond_Changed, null)