diff --git a/WHATS_NEW b/WHATS_NEW
index b3f601e33..d4f7de2e0 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,5 +1,6 @@
 Version 2.02.28 -
 ================================
+  Fix lvconvert_mirrors detection of number of existing mirrors.
   Clean up numerous compiler warnings that crept in recently.
   Remove several unused parameters from _allocate().
   Only permit --force, --verbose and --debug arguments to be repeated.
diff --git a/tools/lvconvert.c b/tools/lvconvert.c
index 61e6a0a5c..bce79e690 100644
--- a/tools/lvconvert.c
+++ b/tools/lvconvert.c
@@ -242,7 +242,7 @@ static int lvconvert_mirrors(struct cmd_context * cmd, struct logical_volume * l
 	unsigned corelog = 0;
 
 	seg = first_seg(lv);
-	existing_mirrors = seg->area_count;
+	existing_mirrors = (lv->status & MIRRORED) ? seg->area_count : 1;
 
 	/*
 	 * Adjust required number of mirrors