diff --git a/lib/modAvmVersion1.jar b/lib/modAvmVersion1.jar
index 3411dff48f..57063854d9 100644
Binary files a/lib/modAvmVersion1.jar and b/lib/modAvmVersion1.jar differ
diff --git a/lib/modAvmVersion2.jar b/lib/modAvmVersion2.jar
index 0750b9e3e3..88e545469a 100644
Binary files a/lib/modAvmVersion2.jar and b/lib/modAvmVersion2.jar differ
diff --git a/modAionImpl/src/org/aion/zero/impl/vm/precompiled/ExternalStateForPrecompiled.java b/modAionImpl/src/org/aion/zero/impl/vm/precompiled/ExternalStateForPrecompiled.java
index 896f5b2652..268f2e675c 100644
--- a/modAionImpl/src/org/aion/zero/impl/vm/precompiled/ExternalStateForPrecompiled.java
+++ b/modAionImpl/src/org/aion/zero/impl/vm/precompiled/ExternalStateForPrecompiled.java
@@ -133,6 +133,9 @@ public BigInteger getBalance(AionAddress address) {
      */
     @Override
     public void addBalance(AionAddress address, BigInteger amount) {
+        if (!this.isLocalCall && getBalance(address).add(amount).signum() < 0) {
+            throw new IllegalArgumentException("This balance adjustment leads to a negative balance!");
+        }
         this.repository.addBalance(address, amount);
     }
 
@@ -255,6 +258,9 @@ public boolean accountBalanceIsAtLeast(AionAddress address, BigInteger amount) {
     @Override
     public void deductEnergyCost(AionAddress address, BigInteger energyCost) {
         if (!this.isLocalCall) {
+            if (getBalance(address).subtract(energyCost).signum() < 0) {
+                throw new IllegalArgumentException("This balance adjustment leads to a negative balance!");
+            }
             this.repository.addBalance(address, energyCost.negate());
         }
     }