diff --git a/src/Mod/TechDraw/App/DrawViewDimension.cpp b/src/Mod/TechDraw/App/DrawViewDimension.cpp
index 8849cedead..cea5225be9 100644
--- a/src/Mod/TechDraw/App/DrawViewDimension.cpp
+++ b/src/Mod/TechDraw/App/DrawViewDimension.cpp
@@ -106,8 +106,8 @@ DrawViewDimension::DrawViewDimension(void)
     References3D.setScope(App::LinkScope::Global);
 
     ADD_PROPERTY_TYPE(FormatSpec,(getDefaultFormatSpec()) , "Format", App::Prop_Output,"Dimension Format");
-    ADD_PROPERTY_TYPE(FormatSpecOverTolerance,("%+g") , "Format", App::Prop_Output,"Dimension Overtolerance Format");
-    ADD_PROPERTY_TYPE(FormatSpecUnderTolerance,("%+g") , "Format", App::Prop_Output,"Dimension Undertolerance Format");
+    ADD_PROPERTY_TYPE(FormatSpecOverTolerance,(getDefaultFormatSpec(true)) , "Format", App::Prop_Output,"Dimension Overtolerance Format");
+    ADD_PROPERTY_TYPE(FormatSpecUnderTolerance,(getDefaultFormatSpec(true)) , "Format", App::Prop_Output,"Dimension Undertolerance Format");
     ADD_PROPERTY_TYPE(Arbitrary,(false) ,"Format", App::Prop_Output,"Value overridden by user");
     ADD_PROPERTY_TYPE(ArbitraryTolerances,(false) ,"Format", App::Prop_Output,"Tolerance values overridden by user");
 
@@ -1300,7 +1300,7 @@ std::string DrawViewDimension::getPrefix() const
     return result;
 }
 
-std::string DrawViewDimension::getDefaultFormatSpec() const
+std::string DrawViewDimension::getDefaultFormatSpec(bool isToleranceFormat) const
 {
     Base::Reference<ParameterGrp> hGrp = App::GetApplication().GetUserParameter()
                                          .GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/TechDraw/Dimensions");
@@ -1333,6 +1333,10 @@ std::string DrawViewDimension::getDefaultFormatSpec() const
 
     }
 
+    if (isToleranceFormat) {
+        formatSpec.replace(QString::fromUtf8("%"), QString::fromUtf8("%+"));
+    }
+
     return Base::Tools::toStdString(formatSpec);
 }
 
diff --git a/src/Mod/TechDraw/App/DrawViewDimension.h b/src/Mod/TechDraw/App/DrawViewDimension.h
index 865c2601a4..20cad696d2 100644
--- a/src/Mod/TechDraw/App/DrawViewDimension.h
+++ b/src/Mod/TechDraw/App/DrawViewDimension.h
@@ -171,7 +171,7 @@ protected:
     virtual void onChanged(const App::Property* prop) override;
     virtual void onDocumentRestored() override;
     std::string getPrefix() const;
-    std::string getDefaultFormatSpec() const;
+    std::string getDefaultFormatSpec(bool isToleranceFormat = false) const;
     virtual pointPair getPointsOneEdge();
     virtual pointPair getPointsTwoEdges();
     virtual pointPair getPointsTwoVerts();