diff --git a/src/Mod/PartDesign/App/Feature.h b/src/Mod/PartDesign/App/Feature.h
index 3f8fc56f7..b1b33662a 100644
--- a/src/Mod/PartDesign/App/Feature.h
+++ b/src/Mod/PartDesign/App/Feature.h
@@ -36,7 +36,7 @@ namespace PartDesign
  *   Base class of all PartDesign features.
  *   This kind of features only produce solids or fail.
  */
-class Feature : public Part::Feature
+class PartDesignExport Feature : public Part::Feature
 {
     PROPERTY_HEADER(PartDesign::Feature);
 
diff --git a/src/Mod/PartDesign/App/FeatureSketchBased.h b/src/Mod/PartDesign/App/FeatureSketchBased.h
index e688100b2..1255f6f7b 100644
--- a/src/Mod/PartDesign/App/FeatureSketchBased.h
+++ b/src/Mod/PartDesign/App/FeatureSketchBased.h
@@ -33,7 +33,7 @@ class TopoDS_Wire;
 namespace PartDesign
 {
 
-class SketchBased : public PartDesign::Feature
+class PartDesignExport SketchBased : public PartDesign::Feature
 {
     PROPERTY_HEADER(PartDesign::SketchBased);