diff --git a/whisper/doc.go b/whisper/doc.go
index cfb0b51175..8781d3b5a9 100644
--- a/whisper/doc.go
+++ b/whisper/doc.go
@@ -15,9 +15,9 @@
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
 /*
-Package whisper implements the Whisper PoC-1.
+Package whisper implements the Whisper PoC-2.
 
-(https://github.com/ethereum/wiki/wiki/Whisper-PoC-1-Protocol-Spec)
+(https://github.com/ethereum/wiki/wiki/Whisper-PoC-2-Protocol-Spec)
 
 Whisper combines aspects of both DHTs and datagram messaging systems (e.g. UDP).
 As such it may be likened and compared to both, not dissimilar to the