diff --git a/scripts/deps.py b/scripts/deps.py
index 9f40dba..7af4eb1 100644
--- a/scripts/deps.py
+++ b/scripts/deps.py
@@ -63,5 +63,5 @@ def source_dirs(bom_dir):
         else:
             if dir.endswith('/printed'):
                 lib_dirs.add(dir)
-    dirs.remove(source_dir)
+    dirs.discard(source_dir)
     return [source_dir] + sorted(dirs) + sorted(lib_dirs)
diff --git a/vitamins/pcbs.scad b/vitamins/pcbs.scad
index 70f1b69..07139eb 100644
--- a/vitamins/pcbs.scad
+++ b/vitamins/pcbs.scad
@@ -730,7 +730,6 @@ Keyes5p1 = ["Keyes5p1", "Keyes5.1 Arduino Uno expansion board", 68.58, 53.34, 1.
     M2p5_pan_screw
    ];
 
-
 ExtruderPCB = ["ExtruderPCB", "Extruder connection PCB",
                                     33.02, 24.13, 1.6, 0,   0,   0, "green", true, [],
     [[3 * 1.27, 24.13 / 2, 90, "D_plug", DCONN15],
@@ -1197,7 +1196,6 @@ ESP_12F = pcb("ESP_12F", "ESP-12F ESP8266 WiFi module", [24, 16, 0.8],
     ]
 );
 
-
 tiny_buck = pcb("tiny_buck", "Ultra Small 3A buck regulator", [20, 11, 1.6],
     hole_d = 1.2,
     land_d = [2, 2],