diff --git a/src/core/vector/qgsvectorlayerprofilegenerator.cpp b/src/core/vector/qgsvectorlayerprofilegenerator.cpp
index a77d368089bf..ca3387c58ccf 100644
--- a/src/core/vector/qgsvectorlayerprofilegenerator.cpp
+++ b/src/core/vector/qgsvectorlayerprofilegenerator.cpp
@@ -971,14 +971,7 @@ bool QgsVectorLayerProfileGenerator::generateProfileForLines()
   // get features from layer
   QgsFeatureRequest request;
   request.setDestinationCrs( mTargetCrs, mTransformContext );
-  if ( mTolerance > 0 )
-  {
-    request.setDistanceWithin( QgsGeometry( mProfileCurve->clone() ), mTolerance );
-  }
-  else
-  {
-    request.setFilterRect( mProfileCurve->boundingBox() );
-  }
+  request.setFilterRect( mProfileBufferedCurve->boundingBox() );
   request.setSubsetOfAttributes( mDataDefinedProperties.referencedFields( mExpressionContext ), mFields );
   request.setFeedback( mFeedback.get() );
 
@@ -1263,14 +1256,7 @@ bool QgsVectorLayerProfileGenerator::generateProfileForPolygons()
   // get features from layer
   QgsFeatureRequest request;
   request.setDestinationCrs( mTargetCrs, mTransformContext );
-  if ( mTolerance > 0 )
-  {
-    request.setDistanceWithin( QgsGeometry( mProfileCurve->clone() ), mTolerance );
-  }
-  else
-  {
-    request.setFilterRect( mProfileCurve->boundingBox() );
-  }
+  request.setFilterRect( mProfileBufferedCurve->boundingBox() );
   request.setSubsetOfAttributes( mDataDefinedProperties.referencedFields( mExpressionContext ), mFields );
   request.setFeedback( mFeedback.get() );