diff --git a/Geo/STensor3.h b/Geo/STensor3.h
index 398596f151b6caf1c22caf9789023e1210097377..d286062dd3c9fbbd5e5e06c2f6e2a5834b53f497 100644
--- a/Geo/STensor3.h
+++ b/Geo/STensor3.h
@@ -53,7 +53,7 @@ class SMetric3 {
            const SVector3 &t2,
            const SVector3 &t3)
   {
-    // M = e^1 * diag * e^1^t
+    // M = e^t * diag * e
     // where the elements of diag are l_i = h_i^-2
     // and the rows of e are the UNIT and ORTHOGONAL directions