diff --git a/single-line-diagram/single-line-diagram-core/src/main/java/com/powsybl/sld/model/blocks/AbstractPrimaryBlock.java b/single-line-diagram/single-line-diagram-core/src/main/java/com/powsybl/sld/model/blocks/AbstractPrimaryBlock.java
index d5714a81a..9e20d1dc6 100644
--- a/single-line-diagram/single-line-diagram-core/src/main/java/com/powsybl/sld/model/blocks/AbstractPrimaryBlock.java
+++ b/single-line-diagram/single-line-diagram-core/src/main/java/com/powsybl/sld/model/blocks/AbstractPrimaryBlock.java
@@ -11,8 +11,6 @@
 import com.powsybl.sld.model.coordinate.Orientation;
 import com.powsybl.sld.model.nodes.BusNode;
 import com.powsybl.sld.model.nodes.Node;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -28,8 +26,6 @@
  */
 public abstract class AbstractPrimaryBlock extends AbstractBlock implements PrimaryBlock {
 
-    private static final Logger LOGGER = LoggerFactory.getLogger(AbstractPrimaryBlock.class);
-
     protected final List<Node> nodes;
 
     /**