diff --git a/readme.md b/readme.md
index 1bcb1f5..dd6eb74 100644
--- a/readme.md
+++ b/readme.md
@@ -1872,9 +1872,9 @@ Pin headers and sockets, etc.
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
-|   1 | ```box_header(2p54header102)``` |  Box header 10 x 2 |
+|   1 | ```box_header(2p54header, 10, 2)``` |  Box header 10 x 2 |
 |   1 | ```idc_transition(2p54header, 10)``` |  IDC transition header 10 x 2 |
-|   1 | ```pin_header(2p54header102)``` |  Pin header 10 x 2 |
+|   1 | ```pin_header(2p54header, 10, 2)``` |  Pin header 10 x 2 |
 |   1 | ```pin_socket(2p54header, 10, 2)``` |  Pin socket 10 x 2 |
 |   1 | ```pin_socket(2p54header, 10, 2, right_angle = true)``` |  Pin socket 10 x 2 right_angle |
 
diff --git a/vitamins/pin_header.scad b/vitamins/pin_header.scad
index 5e9f775..e1173ab 100644
--- a/vitamins/pin_header.scad
+++ b/vitamins/pin_header.scad
@@ -50,7 +50,7 @@ module pin_header(type, cols = 1, rows = 1, smt = false, cutout = false) { //! D
     if(cutout)
         dogbone_rectangle([cols * pitch + 2 * panel_clearance, rows * pitch + 2 * panel_clearance, 100], center = false);
     else
-        vitamin(str("pin_header(", type[0], cols, rows, arg(smt, false, "smt"), "): Pin header ", cols, " x ", rows));
+        vitamin(str("pin_header(", type[0], ", ", cols, ", ", rows, arg(smt, false, "smt"), "): Pin header ", cols, " x ", rows));
 
         translate_z(smt ? 3.5 - h : 0) {
             for(x = [0 : cols - 1], y = [0 : rows - 1])
@@ -80,7 +80,7 @@ module box_header(type, cols = 1, rows = 1, smt = false, cutout = false) { //! D
     if(cutout)
         dogbone_rectangle([cols * pitch + 2 * panel_clearance, rows * pitch + 2 * panel_clearance, 100], center = false);
     else
-        vitamin(str("box_header(", type[0], cols, rows, arg(smt, false, "smt"), "): Box header ", cols, " x ", rows));
+        vitamin(str("box_header(", type[0], ", ", cols, ", ", rows, arg(smt, false, "smt"), "): Box header ", cols, " x ", rows));
 
         translate_z(smt ? 3.5 - h : 0) {
             for(x = [0 : cols - 1], y = [0 : rows - 1])