diff --git a/src/main/java/li/cil/oc2/common/tile/ComputerTileEntity.java b/src/main/java/li/cil/oc2/common/tile/ComputerTileEntity.java
index 2987995a..e8cf7a2a 100644
--- a/src/main/java/li/cil/oc2/common/tile/ComputerTileEntity.java
+++ b/src/main/java/li/cil/oc2/common/tile/ComputerTileEntity.java
@@ -336,7 +336,7 @@ public final class ComputerTileEntity extends TileEntity implements ITickableTil
         }
 
         @Override
-        protected void step() {
+        protected void step(final int cyclesPerStep) {
             while (!inputBuffer.isEmpty() && virtualMachine.uart.canPutByte()) {
                 virtualMachine.uart.putByte(inputBuffer.dequeueByte());
             }
diff --git a/src/main/java/li/cil/oc2/common/vm/VirtualMachineRunner.java b/src/main/java/li/cil/oc2/common/vm/VirtualMachineRunner.java
index dcd3e9e2..bec46a2e 100644
--- a/src/main/java/li/cil/oc2/common/vm/VirtualMachineRunner.java
+++ b/src/main/java/li/cil/oc2/common/vm/VirtualMachineRunner.java
@@ -40,7 +40,7 @@ public class VirtualMachineRunner implements Runnable {
     protected void handleBeforeRun() {
     }
 
-    protected void step() {
+    protected void step(final int cyclesPerStep) {
     }
 
     protected void handleAfterRun() {
@@ -72,7 +72,7 @@ public class VirtualMachineRunner implements Runnable {
             for (int i = 0; i < maxSteps; i++) {
                 cycles += cyclesPerStep;
                 board.step(cyclesPerStep);
-                step();
+                step(cyclesPerStep);
 
                 if (System.currentTimeMillis() - start > timeQuotaInMillis.get()) {
                     break;