diff --git a/dcs/frames/__init__.py b/dcs/frames/__init__.py
index e8ebfbf..82c94ce 100644
--- a/dcs/frames/__init__.py
+++ b/dcs/frames/__init__.py
@@ -17,6 +17,7 @@
 from .ch04_quantization_noise import Ch04QuantizationNoiseWindow
 from .ch05_modulation import Ch05ModulationWindow
 from .ch05_iq import Ch05IqWindow
+from .ch05_qam import Ch05QamWindow
 
 
 def get_windows() -> List[Type[base.Window]]:
@@ -31,6 +32,7 @@
         Ch04QuantizationNoiseWindow,
         Ch05ModulationWindow,
         Ch05IqWindow,
+        Ch05QamWindow,
     ]