diff --git a/top/top.c b/top/top.c
index d0b40acc..0baa0274 100644
--- a/top/top.c
+++ b/top/top.c
@@ -3417,7 +3417,7 @@ static void summary_show (void) {
       int shift = 0;
 
       /*** hotplug_acclimated ***/
-      if (kb_main_total > 9999999)
+      if (kb_main_total > 99999999)
          { which = N_txt(AMT_megabyte_txt); shift = 10; }
       if (kb_main_total > 9999999999ull)
          { which = N_txt(AMT_gigabyte_txt); shift = 20; }