diff --git a/src/Mod/PartDesign/App/FeatureExtrude.cpp b/src/Mod/PartDesign/App/FeatureExtrude.cpp
index 914ba2a851..4330551f04 100644
--- a/src/Mod/PartDesign/App/FeatureExtrude.cpp
+++ b/src/Mod/PartDesign/App/FeatureExtrude.cpp
@@ -59,9 +59,10 @@ using namespace PartDesign;
 
 PROPERTY_SOURCE(PartDesign::FeatureExtrude, PartDesign::ProfileBased)
 
+App::PropertyQuantityConstraint::Constraints FeatureExtrude::signedLengthConstraint = { -DBL_MAX, DBL_MAX, 1.0 };
+
 FeatureExtrude::FeatureExtrude()
 {
-    signedLengthConstraint = { -DBL_MAX, DBL_MAX, 1.0 };
 }
 
 short FeatureExtrude::mustExecute() const
diff --git a/src/Mod/PartDesign/App/FeatureExtrude.h b/src/Mod/PartDesign/App/FeatureExtrude.h
index f09457dde0..122d68bd1e 100644
--- a/src/Mod/PartDesign/App/FeatureExtrude.h
+++ b/src/Mod/PartDesign/App/FeatureExtrude.h
@@ -47,7 +47,7 @@ public:
     App::PropertyLength      Offset;
     App::PropertyLinkSub     ReferenceAxis;
 
-    App::PropertyQuantityConstraint::Constraints signedLengthConstraint;
+    static App::PropertyQuantityConstraint::Constraints signedLengthConstraint;
 
     /** @name methods override feature */
     //@{