diff --git a/doc/src/compute_sna_atom.txt b/doc/src/compute_sna_atom.txt
index d614d870c5..b8e3f9b732 100644
--- a/doc/src/compute_sna_atom.txt
+++ b/doc/src/compute_sna_atom.txt
@@ -177,18 +177,18 @@ described by the following piece of python code:
 
 for j1 in range(0,twojmax+1):
     if(diagonal==2): 
-        print j1/2,j1/2,j1/2
+        print j1/2.,j1/2.,j1/2.
     elif(diagonal==1):
         for j in range(0,min(twojmax,2*j1)+1,2): 
-            print j1/2,j1/2,j/2
+            print j1/2.,j1/2.,j/2.
     elif(diagonal==0):
         for j2 in range(0,j1+1):
             for j in range(j1-j2,min(twojmax,j1+j2)+1,2): 
-                print j1/2,j2/2,j/2
+                print j1/2.,j2/2.,j/2.
     elif(diagonal==3):
         for j2 in range(0,j1+1):
             for j in range(j1-j2,min(twojmax,j1+j2)+1,2): 
-                if (j>=j1): print j1/2,j2/2,j/2 :pre
+                if (j>=j1): print j1/2.,j2/2.,j/2. :pre
 
 Compute {snad/atom} evaluates a per-atom array. The columns are
 arranged into {ntypes} blocks, listed in order of atom type {I}.  Each