diff --git a/python/plugins/processing/algs/qgis/Difference.py b/python/plugins/processing/algs/qgis/Difference.py
index e8ac0c95151..d84c7697f35 100644
--- a/python/plugins/processing/algs/qgis/Difference.py
+++ b/python/plugins/processing/algs/qgis/Difference.py
@@ -71,7 +71,7 @@ class Difference(GeoAlgorithm):
         geomType = layerA.dataProvider().geometryType()
         if geomType in GEOM_25D:
             raise GeoAlgorithmExecutionException(
-                self.tr('Input layer has unsupported geometry type {}').format(geomType))
+                self.tr('Input layer does not support 2.5D type geometry ({}).').format(QgsWKBTypes.displayString(geomType)))
 
         writer = self.getOutputFromName(
             Difference.OUTPUT).getVectorWriter(layerA.pendingFields(),
diff --git a/python/plugins/processing/algs/qgis/Intersection.py b/python/plugins/processing/algs/qgis/Intersection.py
index c0c4dbcc57c..45330a734f4 100644
--- a/python/plugins/processing/algs/qgis/Intersection.py
+++ b/python/plugins/processing/algs/qgis/Intersection.py
@@ -82,7 +82,7 @@ class Intersection(GeoAlgorithm):
         geomType = vproviderA.geometryType()
         if geomType in GEOM_25D:
             raise GeoAlgorithmExecutionException(
-                self.tr('Input layer has unsupported geometry type {}').format(geomType))
+                self.tr('Input layer does not support 2.5D type geometry ({}).').format(QgsWKBTypes.displayString(geomType)))
 
         fields = vector.combineVectorFields(vlayerA, vlayerB)
         writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(fields,
diff --git a/python/plugins/processing/algs/qgis/SymmetricalDifference.py b/python/plugins/processing/algs/qgis/SymmetricalDifference.py
index ea414a3a9b5..b6796fd8b52 100644
--- a/python/plugins/processing/algs/qgis/SymmetricalDifference.py
+++ b/python/plugins/processing/algs/qgis/SymmetricalDifference.py
@@ -75,7 +75,7 @@ class SymmetricalDifference(GeoAlgorithm):
         geomType = providerA.geometryType()
         if geomType in GEOM_25D:
             raise GeoAlgorithmExecutionException(
-                self.tr('Input layer has unsupported geometry type {}').format(geomType))
+                self.tr('Input layer does not support 2.5D type geometry ({}).').format(QgsWKBTypes.displayString(geomType)))
 
         fields = vector.combineVectorFields(layerA, layerB)
         writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(
diff --git a/python/plugins/processing/algs/qgis/Union.py b/python/plugins/processing/algs/qgis/Union.py
index db1c6d735bd..12c9dce8df9 100644
--- a/python/plugins/processing/algs/qgis/Union.py
+++ b/python/plugins/processing/algs/qgis/Union.py
@@ -81,7 +81,7 @@ class Union(GeoAlgorithm):
         geomType = vproviderA.geometryType()
         if geomType in GEOM_25D:
             raise GeoAlgorithmExecutionException(
-                self.tr('Input layer has unsupported geometry type {}').format(geomType))
+                self.tr('Input layer does not support 2.5D type geometry ({}).').format(QgsWKBTypes.displayString(geomType)))
 
         fields = vector.combineVectorFields(vlayerA, vlayerB)
         writer = self.getOutputFromName(Union.OUTPUT).getVectorWriter(fields,