diff --git a/preprocess_cancellation.py b/preprocess_cancellation.py
index 5c48021..1382dbc 100644
--- a/preprocess_cancellation.py
+++ b/preprocess_cancellation.py
@@ -5,6 +5,7 @@
 import logging
 import time
 import pathlib
+import platform
 import re
 import shutil
 import statistics
@@ -16,11 +17,13 @@
 logging.basicConfig(stream=sys.stderr, level=logging.INFO)
 logger = logging.getLogger("prepropress_cancellation")
 
+shapely = None
 try:
     import shapely.geometry
 except ImportError:
     logger.info("Shapely not found, complex hulls disabled")
-    shapely = None
+except OSError:
+    logger.exception("Failed to import shapely. Are you missing libgeos?")
 
 
 HEADER_MARKER = "; Pre-Processed for Cancel-Object support\n"
@@ -501,4 +504,4 @@ def _main():
     sys.exit(exitcode)
 
 if __name__ == "__main__":
-    _main()
\ No newline at end of file
+    _main()
diff --git a/pyproject.toml b/pyproject.toml
index 170e8f7..2e1fa96 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "preprocess_cancellation"
-version = "0.1.3"
+version = "0.1.4"
 description = "GCode processor to add klipper cancel-object markers"
 authors = ["Franklyn Tackitt <im@frank.af>"]
 repository = "https://github.com/kageurufu/cancelobject-preprocessor"