diff --git a/lib4sbom/data/package.py b/lib4sbom/data/package.py
index 5055d57..0632985 100644
--- a/lib4sbom/data/package.py
+++ b/lib4sbom/data/package.py
@@ -113,7 +113,7 @@ def set_filesanalysis(self, analysis):
 
     def set_checksum(self, type, value):
         # Only store valid checksums
-        if self._valid_checksum(value) and self._valid_algorithm(type):
+        if self._valid_checksum(value) and self._valid_algorithm(type.strip()):
             # Allow multiple entries
             checksum_entry = [type.strip(), value.lower()]
             if "checksum" in self.package: