diff --git a/gtsam/geometry/Cal3Bundler.cpp b/gtsam/geometry/Cal3Bundler.cpp
index 9f9278831..d2008dd0f 100644
--- a/gtsam/geometry/Cal3Bundler.cpp
+++ b/gtsam/geometry/Cal3Bundler.cpp
@@ -25,7 +25,7 @@ namespace gtsam {
 
 /* ************************************************************************* */
 Cal3Bundler::Cal3Bundler() :
-    f_(1), k1_(0), k2_(0) {
+    f_(1), k1_(0), k2_(0), u0_(0), v0_(0) {
 }
 
 /* ************************************************************************* */