diff --git a/api/gutil.cpp b/api/gutil.cpp
index 04588366c2..a0b4346d19 100644
--- a/api/gutil.cpp
+++ b/api/gutil.cpp
@@ -457,6 +457,8 @@ STARFIELD::STARFIELD() {
     stars = NULL;
     zmax = 8;
     zmaxinv = 1/zmax;
+    speed = 0;
+    nstars = 0;
 }
 
 //