diff --git a/gtsam/geometry/Cal3Bundler.h b/gtsam/geometry/Cal3Bundler.h
index fff9a6e6d..53529ba46 100644
--- a/gtsam/geometry/Cal3Bundler.h
+++ b/gtsam/geometry/Cal3Bundler.h
@@ -53,6 +53,8 @@ public:
    */
   Cal3Bundler(double f, double k1, double k2, double u0 = 0, double v0 = 0);
 
+  virtual ~Cal3Bundler() {}
+
   /// @}
   /// @name Testable
   /// @{
diff --git a/gtsam/geometry/Cal3DS2.h b/gtsam/geometry/Cal3DS2.h
index dbd50f450..617fcf5ff 100644
--- a/gtsam/geometry/Cal3DS2.h
+++ b/gtsam/geometry/Cal3DS2.h
@@ -53,6 +53,8 @@ public:
       double k1, double k2, double p1 = 0.0, double p2 = 0.0) :
         Base(fx, fy, s, u0, v0, k1, k2, p1, p2) {}
 
+  virtual ~Cal3DS2() {}
+
   /// @}
   /// @name Advanced Constructors
   /// @{