1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/gregtech/api/metatileentity/CoverableTileEntity.java b/src/main/java/gregtech/api/metatileentity/CoverableTileEntity.java
index e26d12f311..d3a96efffe 100644
--- a/src/main/java/gregtech/api/metatileentity/CoverableTileEntity.java
+++ b/src/main/java/gregtech/api/metatileentity/CoverableTileEntity.java
@@ -427,7 +427,7 @@ public abstract class CoverableTileEntity extends BaseTileEntity implements ICov
             
             setCoverIDAtSideNoUpdate(aCoverSide, aCoverID);
             setCoverDataAtSide(aCoverSide, aCoverData);
-            if (!isClientSide()) {
+            if (isClientSide()) {
                 behaviorBase.onDataChanged(aCoverSide, aCoverID, aCoverData, this);
             }
         }