diff --git a/gr_pyhole/propagator/__init__.py b/gr_pyhole/propagator/__init__.py
index 4a899e1da315e0c67f1f5bb8c57071125e33d48b..bd9ef8e6353fee5ff453f76434e810371df08e24 100644
--- a/gr_pyhole/propagator/__init__.py
+++ b/gr_pyhole/propagator/__init__.py
@@ -23,6 +23,7 @@ __all__ = ["Propagator", "CPU", "SphericalCPU", "CartesianCPU"]
 try:
     from .gpu import *
 except ImportError:
+    print("An ImportError exception was raised in propagator/gpu.py. Staying with the CPU propagator.")
     pass
 else:
     __all__ = __all__+["GPU", "SphericalGPU", "CartesianGPU"]