diff --git a/contracts/StatusContribution.sol b/contracts/StatusContribution.sol
index e4499c5..a0be71d 100644
--- a/contracts/StatusContribution.sol
+++ b/contracts/StatusContribution.sol
@@ -40,6 +40,7 @@ contract StatusContribution is Owned, TokenController {
     uint256 constant public failSafe = 300000 ether;
     uint256 constant public exchangeRate = 10000;
     uint256 constant public maxGasPrice = 50000000000;
+    uint256 constant public limitSGT = 30 ether;
 
     MiniMeToken public SGT;
     MiniMeToken public SNT;
@@ -58,6 +59,7 @@ contract StatusContribution is Owned, TokenController {
 
     mapping (address => uint256) public guaranteedBuyersLimit;
     mapping (address => uint256) public guaranteedBuyersBought;
+    mapping (address => uint256) public sgtCollected;
 
     uint256 public totalGuaranteedCollected;
     uint256 public totalNormalCollected;
@@ -214,6 +216,15 @@ contract StatusContribution is Owned, TokenController {
             toFund = toCollect;
         }
 
+        uint256 currentIndex = dynamicCeiling.currentIndex();
+        if (currentIndex == 0) {
+            require(SGT.balanceOf(_th) > 0);
+            if (sgtCollected[_th].add(toFund) > limitSGT) {
+                toFund = limitSGT.sub(sgtCollected[_th]);
+            }
+            sgtCollected[_th] = sgtCollected[_th].add(toFund);
+        }
+
         totalNormalCollected = totalNormalCollected.add(toFund);
         doBuy(_th, toFund, false);
     }
diff --git a/test/dynamicCeiling.js b/test/dynamicCeiling.js
index 2d8c4cc..042f41d 100644
--- a/test/dynamicCeiling.js
+++ b/test/dynamicCeiling.js
@@ -193,7 +193,7 @@ contract("DynamicCeiling", (accounts) => {
                 web3.sha3("pwd0"),
                 web3.sha3("pwd1"),
                 web3.sha3("pwd2"),
-            ],
+            ]
         );
 
         assert.equal(await dynamicCeiling.currentIndex(), 0);