diff --git a/src/main/java/com/github/difflib/text/DiffRowGenerator.java b/src/main/java/com/github/difflib/text/DiffRowGenerator.java
index aa67877..2362d13 100644
--- a/src/main/java/com/github/difflib/text/DiffRowGenerator.java
+++ b/src/main/java/com/github/difflib/text/DiffRowGenerator.java
@@ -146,7 +146,7 @@ public class DiffRowGenerator {
          * ured ignoreBlankLines parameter
          */
         public Builder columnWidth(int width) {
-            if (width > 0) {
+            if (width >= 0) {
                 columnWidth = width;
             }
             return this;