diff --git a/src/main/java/w2phtml/base/BinaryGraphicsDocument.java b/src/main/java/w2phtml/base/BinaryGraphicsDocument.java
index ba57496..86fc538 100644
--- a/src/main/java/w2phtml/base/BinaryGraphicsDocument.java
+++ b/src/main/java/w2phtml/base/BinaryGraphicsDocument.java
@@ -375,7 +375,7 @@ public class BinaryGraphicsDocument implements OutputFile {
 		}
 
 		public String getImageName() {
-			if (imageName == null || imageName.isBlank()) {
+			if (imageName == null || imageName.isEmpty()) {
 				return sFileName;	
 			}
 			return imageName;