diff --git a/platform/vcs-api/src/com/intellij/openapi/vcs/AbstractVcs.java b/platform/vcs-api/src/com/intellij/openapi/vcs/AbstractVcs.java
index 586d50c3344e..a7862572c859 100644
--- a/platform/vcs-api/src/com/intellij/openapi/vcs/AbstractVcs.java
+++ b/platform/vcs-api/src/com/intellij/openapi/vcs/AbstractVcs.java
@@ -630,6 +630,9 @@ public abstract class AbstractVcs<ComList extends CommittedChangeList> extends S
     return true;
   }
 
+  /**
+   * compares different presentations of revision number (ex. in Perforce)
+   */
   public boolean revisionsSame(@NotNull final VcsRevisionNumber number1, @NotNull final VcsRevisionNumber number2) {
     return number1.equals(number2);
   }