diff --git a/src/libged/draw.cpp b/src/libged/draw.cpp
index 0808317ad5..0d251d4d3c 100644
--- a/src/libged/draw.cpp
+++ b/src/libged/draw.cpp
@@ -866,8 +866,7 @@ tree_color(struct directory *dp, struct draw_data_t *dd)
   step.  That mode is also supported by this subtree walk.
 
 ******************************************************************************/
-
-extern "C" void
+static void
 draw_walk_tree(struct db_full_path *path, union tree *tp, mat_t *curr_mat,
 			 void (*traverse_func) (struct db_full_path *path, mat_t *, void *),
 			 void *client_data, void *comb_inst_map)
@@ -956,7 +955,6 @@ draw_walk_tree(struct db_full_path *path, union tree *tp, mat_t *curr_mat,
     }
 }
 
-
 /**
  * This walker builds a list of db_full_path entries corresponding to
  * the contents of the tree under *path.  It does so while assigning
diff --git a/src/libged/ged_private.h b/src/libged/ged_private.h
index 98745bfe2b..a79eec64e6 100644
--- a/src/libged/ged_private.h
+++ b/src/libged/ged_private.h
@@ -239,9 +239,7 @@ struct draw_data_t {
     std::map<struct directory *, fastf_t> *s_size;
 #endif
 };
-GED_EXPORT void draw_walk_tree(struct db_full_path *path, union tree *tp, mat_t *curr_mat,
-          void (*traverse_func) (struct db_full_path *path, mat_t *, void *),
-          void *client_data, void *comb_inst_map);
+
 GED_EXPORT void draw_gather_paths(struct db_full_path *path, mat_t *curr_mat, void *client_data);
 
 GED_EXPORT void vls_col_item(struct bu_vls *str, const char *cp);