diff --git a/simgear/math/SGSphere.hxx b/simgear/math/SGSphere.hxx
index 26649e1b..d3d190e0 100644
--- a/simgear/math/SGSphere.hxx
+++ b/simgear/math/SGSphere.hxx
@@ -18,6 +18,8 @@
 #ifndef SGSphere_H
 #define SGSphere_H
 
+#pragma GCC diagnostic ignored "-Wuninitialized" SGSphere();
+
 template<typename T>
 class SGSphere {
 public: