diff --git a/src/buttons.c b/src/buttons.c
index b2daddd2..33078df2 100644
--- a/src/buttons.c
+++ b/src/buttons.c
@@ -352,7 +352,7 @@ void Button_Hide_menu(void)
         if (Main_magnifier_height>Main_image_height)
           Main_magnifier_offset_Y=0;
         else
-          Main_magnifier_offset_Y=Main_image_height-Main_magnifier_height;
+          Main_magnifier_offset_Y=Main_image_height-Main_magnifier_height+1;
       }
     }
 
@@ -421,7 +421,7 @@ void Set_bar_visibility(word bar, byte visible)
         if (Main_magnifier_height>Main_image_height)
           Main_magnifier_offset_Y=0;
         else
-          Main_magnifier_offset_Y=Main_image_height-Main_magnifier_height;
+          Main_magnifier_offset_Y=Main_image_height-Main_magnifier_height+1;
       }
     }
 
diff --git a/src/special.c b/src/special.c
index da8e8359..5451c1a8 100644
--- a/src/special.c
+++ b/src/special.c
@@ -356,7 +356,7 @@ void Scroll_magnifier(short delta_x,short delta_y)
   if (temp_x_offset+Main_magnifier_width>Main_image_width)
     temp_x_offset=Main_image_width-Main_magnifier_width;
   if (temp_y_offset+Main_magnifier_height>Main_image_height)
-    temp_y_offset=Main_image_height-Main_magnifier_height;
+    temp_y_offset=Main_image_height-Main_magnifier_height+1;
   if (temp_x_offset<0)
     temp_x_offset=0;
   if (temp_y_offset<0)
diff --git a/src/windows.c b/src/windows.c
index 18a47a5d..e2fc12b3 100644
--- a/src/windows.c
+++ b/src/windows.c
@@ -1776,7 +1776,7 @@ void Compute_magnifier_data(void)
   if (Main_magnifier_mode && Main_magnifier_offset_Y)
   {
     if (Main_image_height<Main_magnifier_offset_Y+Main_magnifier_height)
-      Main_magnifier_offset_Y=Main_image_height-Main_magnifier_height;
+      Main_magnifier_offset_Y=Main_image_height-Main_magnifier_height+1;
     if (Main_magnifier_offset_Y<0) Main_magnifier_offset_Y=0;
   }
   
@@ -1835,7 +1835,7 @@ void Change_magnifier_factor(byte factor_index, byte point_at_mouse)
     if (Main_magnifier_offset_X+Main_magnifier_width>Main_image_width)
       Main_magnifier_offset_X=Main_image_width-Main_magnifier_width;
     if (Main_magnifier_offset_Y+Main_magnifier_height>Main_image_height)
-      Main_magnifier_offset_Y=Main_image_height-Main_magnifier_height;
+      Main_magnifier_offset_Y=Main_image_height-Main_magnifier_height+1;
     if (Main_magnifier_offset_X<0)
       Main_magnifier_offset_X=0;
     if (Main_magnifier_offset_Y<0)