diff --git a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_AssemblyLine.java b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_AssemblyLine.java
index cd07d3f0..5ba4d04d 100644
--- a/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_AssemblyLine.java
+++ b/src/main/java/gregtech/common/tileentities/machines/multi/GT_MetaTileEntity_AssemblyLine.java
@@ -159,6 +159,7 @@ public class GT_MetaTileEntity_AssemblyLine
 
                 tTileEntity = aBaseMetaTileEntity.getIGregTechTileEntityOffset(xDir, 1, i);
                 if (!addEnergyInputToMachineList(tTileEntity, 16)){
+                    if (i==0) return false;
                     if (aBaseMetaTileEntity.getBlockOffset(xDir, 1, i) != GregTech_API.sBlockCasings2) {return false;}
                     if (aBaseMetaTileEntity.getMetaIDOffset(xDir, 1, i) != 0) {return false;}
                 }
@@ -193,6 +194,7 @@ public class GT_MetaTileEntity_AssemblyLine
 
                 tTileEntity = aBaseMetaTileEntity.getIGregTechTileEntityOffset(i, 1, zDir);
                 if (!addEnergyInputToMachineList(tTileEntity, 16)){
+                    if (i==0) return false;
                     if (aBaseMetaTileEntity.getBlockOffset(i, 1, zDir) != GregTech_API.sBlockCasings2) {return false;}
                     if (aBaseMetaTileEntity.getMetaIDOffset(i, 1, zDir) != 0) {return false;}
                 }