diff --git a/src/Mod/Fem/_TaskPanelShowResult.py b/src/Mod/Fem/_TaskPanelShowResult.py
index 81b07e037..e0d9f4f25 100644
--- a/src/Mod/Fem/_TaskPanelShowResult.py
+++ b/src/Mod/Fem/_TaskPanelShowResult.py
@@ -319,7 +319,7 @@ class _TaskPanelShowResult:
         self.suitable_results = False
         if self.result_object:
             # Disable temperature radio button if it does ot exist in results
-            if len(self.result_object.Temperature) == 1:
+            if len(self.result_object.Temperature) == 0:
                 self.form.rb_temperature.setEnabled(0)
 
             if (self.MeshObject.FemMesh.NodeCount == len(self.result_object.NodeNumbers)):