diff --git a/src/java.base/share/classes/sun/nio/ch/Net.java b/src/java.base/share/classes/sun/nio/ch/Net.java
index d6f22bbcca7..49814ae6bf2 100644
--- a/src/java.base/share/classes/sun/nio/ch/Net.java
+++ b/src/java.base/share/classes/sun/nio/ch/Net.java
@@ -730,7 +730,7 @@ public class Net {
     }
 
     /**
-     * Unblock IPv6 source
+     * Unblock IPv4 source
      */
     static void unblock4(FileDescriptor fd, int group, int interf, int source)
         throws IOException