diff --git a/src/ui.cpp b/src/ui.cpp
index d7c395aa..c161ff43 100644
--- a/src/ui.cpp
+++ b/src/ui.cpp
@@ -151,7 +151,7 @@ static const char *mkline(unsigned long fu_len, unsigned long fc_len,
 
     // Large ratios can happen because of overlays that are
     // appended after a program is packed.
-    unsigned ratio = get_ratio(fu_len, fc_len);
+    unsigned ratio = get_ratio(fu_len, fc_len) + 50;
 #if 1
     if (ratio >= 1000*1000)
         strcpy(r, "overlay");
diff --git a/src/util.cpp b/src/util.cpp
index f3870006..350bfdc4 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -533,7 +533,7 @@ unsigned get_ratio(unsigned u_len, unsigned c_len)
     const unsigned n = 1000000;
     if (u_len <= 0)
         return c_len <= 0 ? 0 : n;
-    return (unsigned) ((c_len * (acc_uint64l_t)n) / u_len) + 5;
+    return (unsigned) ((c_len * (acc_uint64l_t)n) / u_len);
 }