diff --git a/invesalius/reader/dicom_reader.py b/invesalius/reader/dicom_reader.py
index a9e2e80..bff4743 100644
--- a/invesalius/reader/dicom_reader.py
+++ b/invesalius/reader/dicom_reader.py
@@ -124,7 +124,10 @@ class LoadDicom:
                 if encoding_value.startswith("Loaded"):
                     encoding = "ISO_IR 100"
                 else:
-                    encoding = const.DICOM_ENCODING_TO_PYTHON[encoding_value]
+                    try:
+                        encoding = const.DICOM_ENCODING_TO_PYTHON[encoding_value]
+                    except KeyError:
+                        encoding = 'ISO_IR 100'
             else:
                 encoding = "ISO_IR 100"
 
--
libgit2 0.21.2