diff --git a/imageringlist.cpp b/imageringlist.cpp
index 3b4c094..55e1882 100644
--- a/imageringlist.cpp
+++ b/imageringlist.cpp
@@ -266,7 +266,7 @@ void ImageRingList::prevSubImage()
         int index = (*m_currImage)->info().index;
         int num = (*m_currImage)->info().num;
         if(num > 1)
-            (*m_currImage)->load(index == 1 ? num - 1 : index - 1, m_loadPool);
+            (*m_currImage)->load(index == 0 ? num - 1 : index - 1, m_loadPool);
     }
 }