diff --git a/ema_pytorch/ema_pytorch.py b/ema_pytorch/ema_pytorch.py
index 7138770..35d68be 100644
--- a/ema_pytorch/ema_pytorch.py
+++ b/ema_pytorch/ema_pytorch.py
@@ -101,7 +101,7 @@ def __init__(
 
         # handle callable returning ema module
 
-        if callable(ema_model):
+        if not isinstance(ema_model, Module) and callable(ema_model):
             ema_model = ema_model()
 
         # ema model
diff --git a/ema_pytorch/post_hoc_ema.py b/ema_pytorch/post_hoc_ema.py
index 09b6d19..41e4d2d 100644
--- a/ema_pytorch/post_hoc_ema.py
+++ b/ema_pytorch/post_hoc_ema.py
@@ -77,7 +77,7 @@ def __init__(
 
         # handle callable returning ema module
 
-        if callable(ema_model):
+        if not isinstance(ema_model, Module) and callable(ema_model):
             ema_model = ema_model()
 
         # ema model
diff --git a/setup.py b/setup.py
index eb7832d..ddfed7f 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 setup(
   name = 'ema-pytorch',
   packages = find_packages(exclude=[]),
-  version = '0.7.4',
+  version = '0.7.5',
   license='MIT',
   description = 'Easy way to keep track of exponential moving average version of your pytorch module',
   author = 'Phil Wang',