diff --git a/src/Dialog_Base_Partition.cc b/src/Dialog_Base_Partition.cc
index 943ef816..a025ac49 100644
--- a/src/Dialog_Base_Partition.cc
+++ b/src/Dialog_Base_Partition.cc
@@ -510,7 +510,7 @@ int Dialog_Base_Partition::MB_Needed_for_Boot_Record( const Partition & partitio
 	       )
 	    || ( partition .type == TYPE_LOGICAL )
 	                                     /* Beginning of disk device */
-	    || ( partition .sector_start <= (MEBIBYTE / partition .sector_size) )
+	    || (partition.sector_start < (MEBIBYTE / partition.sector_size))
 	   )
 		return 1 ;
 	else
diff --git a/src/Win_GParted.cc b/src/Win_GParted.cc
index 9e07a801..3bf5054d 100644
--- a/src/Win_GParted.cc
+++ b/src/Win_GParted.cc
@@ -1363,7 +1363,7 @@ void Win_GParted::set_valid_operations()
 			       )
 			    || ( selected_partition_ptr->type == TYPE_LOGICAL )
 			                                     /* Beginning of disk device */
-			    || ( selected_partition_ptr->sector_start <= (MEBIBYTE / selected_partition_ptr->sector_size) )
+			    || (selected_partition_ptr->sector_start < (MEBIBYTE / selected_partition_ptr->sector_size))
 			   )
 				required_size += MEBIBYTE;