diff --git a/panda/src/char/characterSlider.cxx b/panda/src/char/characterSlider.cxx
index b4ced5e782..8885c3acfd 100644
--- a/panda/src/char/characterSlider.cxx
+++ b/panda/src/char/characterSlider.cxx
@@ -44,6 +44,14 @@ CharacterSlider(PartGroup *parent, const std::string &name)
   : MovingPartScalar(parent, name) {
 }
 
+/**
+ *
+ */
+CharacterSlider::
+CharacterSlider(PartGroup *parent, const std::string &name, const PN_stdfloat &default_value)
+  : MovingPartScalar(parent, name, default_value) {
+}
+
 /**
  *
  */
diff --git a/panda/src/char/characterSlider.h b/panda/src/char/characterSlider.h
index 9871095afd..54cc7cfd1d 100644
--- a/panda/src/char/characterSlider.h
+++ b/panda/src/char/characterSlider.h
@@ -32,6 +32,7 @@ protected:
 
 PUBLISHED:
   explicit CharacterSlider(PartGroup *parent, const std::string &name);
+  explicit CharacterSlider(PartGroup *parent, const std::string &name, const PN_stdfloat &default_value);
   virtual ~CharacterSlider();
 
 public: