diff --git a/python/plugins/processing/core/parameters.py b/python/plugins/processing/core/parameters.py
index 089bca31312..801347abb4c 100644
--- a/python/plugins/processing/core/parameters.py
+++ b/python/plugins/processing/core/parameters.py
@@ -328,6 +328,7 @@ class ParameterExtent(Parameter):
     def __init__(self, name='', description='', default=None, optional=True):
         Parameter.__init__(self, name, description, default, optional)
         # The value is a string in the form "xmin, xmax, ymin, ymax"
+        self.skip_crs_check = False
 
     def setValue(self, value):
         if not value:
diff --git a/python/plugins/processing/gui/AlgorithmDialog.py b/python/plugins/processing/gui/AlgorithmDialog.py
index f618a07f3c0..829d5dc532c 100644
--- a/python/plugins/processing/gui/AlgorithmDialog.py
+++ b/python/plugins/processing/gui/AlgorithmDialog.py
@@ -133,6 +133,9 @@ class AlgorithmDialog(AlgorithmDialogBase):
                             if p.crs() != projectCRS:
                                 unmatchingCRS = True
             if isinstance(param, ParameterExtent):
+                if param.skip_crs_check:
+                    continue
+
                 value = self.mainWidget.wrappers[param.name].widget.leText.text().strip()
                 if value:
                     hasExtent = True