diff --git a/j/b/scag.c b/j/b/scag.c
index 3c9ad70d29..17381e16e0 100644
--- a/j/b/scag.c
+++ b/j/b/scag.c
@@ -20,15 +20,15 @@
       c3_w i_w = a;
 
       if ( !i_w )
-	return u3_nul;
+        return u3_nul;
 
       while ( i_w ) {
         if ( c3n == u3du(b) ) {
           return u3_nul;
         }
-	acc = u3i_cell( u3h(b), acc );
-	b = u3t(b);
-	i_w--;
+        acc = u3i_cell( u3h(b), acc );
+        b = u3t(b);
+        i_w--;
       }
 
       return u3kb_flop(acc);