diff --git a/playbook/templates/client.py b/playbook/templates/client.py
index 8f3ce9f..f11ffb4 100755
--- a/playbook/templates/client.py
+++ b/playbook/templates/client.py
@@ -15,7 +15,7 @@ binding_back = [ord('h'), ord('q'), curses.KEY_BACKSPACE]
 binding_exit = [ord('Q')]
 
 def show_pictures(path):
-    files = sorted([str(f) for f in path.iterdir() if f.is_file() and f.suffix in ['.png', '.jpg', '.jpeg', '.gif']])
+    files = sorted([str(f) for f in path.iterdir() if f.is_file() and f.suffix.lower() in ['.png', '.jpg', '.jpeg', '.gif']])
     files.insert(0, '/usr/bin/imvr')
     subprocess.call(files)
     return True