1 files changed, 4 insertions, 0 deletions
diff --git a/src/w32fns.c b/src/w32fns.c
index 8b2b865c6d3..74629225cbf 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -4269,6 +4269,10 @@ This function is an internal primitive--use `make-frame' instead.  */)
 
   check_w32 ();
 
+  /* Make copy of frame parameters because the original is in pure
+     storage now. */
+  parameters = Fcopy_alist (parameters);
+
   /* Use this general default value to start with
      until we know if this frame has a specified name.  */
   Vx_resource_name = Vinvocation_name;