diff --git a/doc/pair_meam.html b/doc/pair_meam.html
index d26555ae93..6ddf3a97f9 100644
--- a/doc/pair_meam.html
+++ b/doc/pair_meam.html
@@ -156,7 +156,7 @@ lattce(I,J) = lattice structure of I-J reference structure:
                 fcc = face centered cubic
                 bcc = body centered cubic
                 dim = dimer 
-                B1  = rock salt (NaCl structure)
+                b1  = rock salt (NaCl structure)
 gsmooth_factor  = factor determining the length of the G-function smoothing
                   region; only significant for ibar=0 or ibar=4.
                       99.0 = short smoothing region, sharp step
diff --git a/doc/pair_meam.txt b/doc/pair_meam.txt
index af9020555d..abff2fc31c 100644
--- a/doc/pair_meam.txt
+++ b/doc/pair_meam.txt
@@ -153,7 +153,7 @@ lattce(I,J) = lattice structure of I-J reference structure:
                 fcc = face centered cubic
                 bcc = body centered cubic
                 dim = dimer 
-                B1  = rock salt (NaCl structure)
+                b1  = rock salt (NaCl structure)
 gsmooth_factor  = factor determining the length of the G-function smoothing
                   region; only significant for ibar=0 or ibar=4.
                       99.0 = short smoothing region, sharp step