diff --git a/func/T1B1correctpackage.m b/func/T1B1correctpackage.m
index a40ef7c..6710349 100644
--- a/func/T1B1correctpackage.m
+++ b/func/T1B1correctpackage.m
@@ -164,7 +164,8 @@
 T1temp = MP2RAGEimg;
 B1temp = Sa2RAGEimg;
 brain.img(Sa2RAGEimg.img==0)          = 0;
-brain.img(MP2RAGEimg.img==0)          = 0;
+brain.img(MP2RAGEimg.img==...
+    min(MP2RAGEimg.img(:)))           = 0;
 T1temp.img(brain.img==0)              = 0;
 T1temp.img(brain.img==1)              = 1.5;
 B1temp.img(brain.img==0)              = 0;
diff --git a/func/T1B1correctpackageTFL.m b/func/T1B1correctpackageTFL.m
index 560480e..3772616 100644
--- a/func/T1B1correctpackageTFL.m
+++ b/func/T1B1correctpackageTFL.m
@@ -156,7 +156,8 @@
 T1temp                        = MP2RAGEimg;
 
 brain.img(B1img.img==0)       = 0;
-brain.img(MP2RAGEimg.img==0)  = 0;
+brain.img(MP2RAGEimg.img==...
+    min(MP2RAGEimg.img(:)))   = 0;
 T1temp.img(brain.img==0)      = 0;
 T1temp.img(brain.img==1)      = 0;
 B1img.img(brain.img==0)       = 0;