diff --git a/platform/platform-impl/src/com/intellij/openapi/diff/impl/incrementalMerge/ChangeSide.java b/platform/platform-impl/src/com/intellij/openapi/diff/impl/incrementalMerge/ChangeSide.java
index 94023839ed81..885f82516b6d 100644
--- a/platform/platform-impl/src/com/intellij/openapi/diff/impl/incrementalMerge/ChangeSide.java
+++ b/platform/platform-impl/src/com/intellij/openapi/diff/impl/incrementalMerge/ChangeSide.java
@@ -21,7 +21,7 @@ import org.jetbrains.annotations.NotNull;
 /**
 * @author Kirill Likhodedov
 */
-abstract class ChangeSide {
+public abstract class ChangeSide {
 
   public int getStart() {
     return getRange().getStartOffset();