diff --git a/vrtManager/create.py b/vrtManager/create.py
index 5b60dee..671de97 100644
--- a/vrtManager/create.py
+++ b/vrtManager/create.py
@@ -38,7 +38,7 @@ class wvmCreate(wvmConnect):
             except:
                 pass
             for img in stg.listVolumes():
-                if img.endswith('.iso'):
+                if img.lower().endswith('.iso'):
                     pass
                 else:
                     images.append(img)
diff --git a/vrtManager/instance.py b/vrtManager/instance.py
index c18e368..6c1cfec 100644
--- a/vrtManager/instance.py
+++ b/vrtManager/instance.py
@@ -830,7 +830,7 @@ class wvmInstance(wvmConnect):
                 except:
                     pass
                 for img in stg.listVolumes():
-                    if img.endswith('.iso'):
+                    if img.lower().endswith('.iso'):
                         iso.append(img)
         return iso