diff --git a/keyboard60.sh b/keyboard60.sh
old mode 100644
new mode 100755
index 12ab806..ee5d244
--- a/keyboard60.sh
+++ b/keyboard60.sh
@@ -6,25 +6,25 @@ mkdir -p keyboard60_stl
 echo "Generating: case_left.stl"
 openscad \
     -o "keyboard60_stl/case_left.stl" \
-    -D "render_part=left" \
+    -D "render_part=\"left\"" \
     ./case.scad
 
 echo "Generating: case_right.stl"
 openscad \
     -o "keyboard60_stl/case_right.stl" \
-    -D "render_part=right" \
+    -D "render_part=\"right\"" \
     ./case.scad
 
 echo "Generating: backplate_left.stl"
 openscad \
     -o "keyboard60_stl/backplate_left.stl" \
-    -D "render_part=left" \
+    -D "render_part=\"left\"" \
     ./backplate.scad
 
 echo "Generating: backplate_right.stl"
 openscad \
     -o "keyboard60_stl/backplate_right.stl" \
-    -D "render_part=right" \
+    -D "render_part=\"right\"" \
     ./backplate.scad
 
 echo "Done! Check the 'keyboard60_stl' folder."
diff --git a/keyboard60_ortholinear.sh b/keyboard60_ortholinear.sh
old mode 100644
new mode 100755
index 24ff60f..954c127
--- a/keyboard60_ortholinear.sh
+++ b/keyboard60_ortholinear.sh
@@ -6,25 +6,25 @@ mkdir -p keyboard60_ortholinear_stl
 echo "Generating: case_left.stl"
 openscad \
     -o "keyboard60_ortholinear_stl/case_left.stl" \
-    -D "render_part=left" \
+    -D "render_part=\"left\"" \
     ./case.scad
 
 echo "Generating: case_right.stl"
 openscad \
     -o "keyboard60_ortholinear_stl/case_right.stl" \
-    -D "render_part=right" \
+    -D "render_part=\"right\"" \
     ./case.scad
 
 echo "Generating: backplate_left.stl"
 openscad \
     -o "keyboard60_ortholinear_stl/backplate_left.stl" \
-    -D "render_part=left" \
+    -D "render_part=\"left\"" \
     ./backplate_ortholinear.scad
 
 echo "Generating: backplate_right.stl"
 openscad \
     -o "keyboard60_ortholinear_stl/backplate_right.stl" \
-    -D "render_part=right" \
+    -D "render_part=\"right\"" \
     ./backplate_ortholinear.scad
 
 echo "Done! Check the 'keyboard60_ortholinear_stl' folder."
diff --git a/numpad.sh b/numpad.sh
old mode 100644
new mode 100755