diff --git a/src/frames/pieces/front-or-back-inner-wall-for-horiz-stripes.scad b/src/frames/pieces/front-or-back-inner-wall-for-horiz-stripes.scad
index 1f02e56..25edb4f 100644
--- a/src/frames/pieces/front-or-back-inner-wall-for-horiz-stripes.scad
+++ b/src/frames/pieces/front-or-back-inner-wall-for-horiz-stripes.scad
@@ -6,8 +6,8 @@
 
 include <parameters.scad>
 include <components.scad>
+use <front-or-back.scad>
 use <front-or-back-inner-wall.scad>
-use <front-or-back-longish.scad>
 use <front-or-back-windowed-horiz-stripes.scad>
 
 // for stability's sake, this piece juts out a bit from the outside of the wall, so we
diff --git a/src/frames/pieces/front-or-back-inner-wall.scad b/src/frames/pieces/front-or-back-inner-wall.scad
index 47b70de..4146383 100644
--- a/src/frames/pieces/front-or-back-inner-wall.scad
+++ b/src/frames/pieces/front-or-back-inner-wall.scad
@@ -36,4 +36,30 @@ module front_or_back_inner_wall_frame_piece() {
 		translate([0, 0, 50]) rotate([90, 0, 0]) front_or_back_inner_wall_frame_base_piece();
 }
 
+// this is here for use in inner wall pieces, but unlike the side longish piece (in its own
+// .scad), front_or_back_longish_frame_piece is not printable so we'll just stash it here
+module front_or_back_frame_piece_wall() {
+       // get a slice of the whole wall, to use it for making the extended version
+       difference() {
+               front_or_back_frame_piece();
+               cube([frame_x, frame_y-frame_wall*2, frame_z], center=true);
+       }
+}
+
+// this is here for use in inner wall pieces, but unlike the side longish piece (in its own
+// .scad), front_or_back_longish_frame_piece is not printable so we'll just stash it here
+module front_or_back_frame_piece_extension() {
+	hull() {
+		front_or_back_frame_piece_wall();
+		translate([0, -frame_bevel_height*2, 0]) front_or_back_frame_piece_wall();
+	}
+}
+
+// this is here for use in inner wall pieces, but unlike the side longish piece (in its own
+// .scad), front_or_back_longish_frame_piece is not printable so we'll just stash it here
+module front_or_back_longish_frame_piece() {
+	front_or_back_frame_piece_extension();
+	front_or_back_frame_piece();
+}
+
 front_or_back_inner_wall_frame_piece();
diff --git a/src/frames/pieces/front-or-back-longish.scad b/src/frames/pieces/front-or-back-longish.scad
deleted file mode 100644
index b83bfc4..0000000
--- a/src/frames/pieces/front-or-back-longish.scad
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * SPDX-FileCopyrightText: © 2025 Brian S. Stephan <bss@incorporeal.org>
- * SPDX-License-Identifier: GPL-3.0-or-later
- */
-
-include <parameters.scad>
-include <components.scad>
-use <front-or-back.scad>
-
-module front_or_back_frame_piece_wall() {
-	// get a slice of the whole wall, to use it for making the extended version
-	difference() {
-		front_or_back_frame_piece();
-		cube([frame_x, frame_y-frame_wall*2, frame_z], center=true);
-	}
-}
-
-module front_or_back_frame_piece_extension() {
-	hull() {
-		front_or_back_frame_piece_wall();
-		translate([0, -frame_bevel_height*2, 0]) front_or_back_frame_piece_wall();
-	}
-}
-
-module front_or_back_longish_frame_piece() {
-	front_or_back_frame_piece_extension();
-	front_or_back_frame_piece();
-}
-
-front_or_back_longish_frame_piece();