diff --git a/cura/PrintInformation.py b/cura/PrintInformation.py
index 86c90e03d3..e11f70a54c 100644
--- a/cura/PrintInformation.py
+++ b/cura/PrintInformation.py
@@ -371,12 +371,12 @@ class PrintInformation(QObject):
 
             # Strip the old "curaproject" extension from the name
             OLD_CURA_PROJECT_EXT = ".curaproject"
-            if self._base_name.endswith(OLD_CURA_PROJECT_EXT):
+            if self._base_name.lower().endswith(OLD_CURA_PROJECT_EXT):
                 self._base_name = self._base_name[:len(self._base_name) - len(OLD_CURA_PROJECT_EXT)]
 
             # CURA-5896 Try to strip extra extensions with an infinite amount of ".curaproject.3mf".
             OLD_CURA_PROJECT_3MF_EXT = ".curaproject.3mf"
-            while self._base_name.endswith(OLD_CURA_PROJECT_3MF_EXT):
+            while self._base_name.lower().endswith(OLD_CURA_PROJECT_3MF_EXT):
                 self._base_name = self._base_name[:len(self._base_name) - len(OLD_CURA_PROJECT_3MF_EXT)]
 
             self._updateJobName()