diff --git a/mods/tech.js b/mods/tech.js
index 3296fedb..40d0cfea 100644
--- a/mods/tech.js
+++ b/mods/tech.js
@@ -1,7 +1,7 @@
 elements.monitor_case = {
     color: "#4a4848",
     behavior: behaviors.SOLID,
-    category: "Tech",
+    category: "machines",
     state: "solid",
     density: 500,
 };
@@ -13,7 +13,7 @@ elements.pc_core = {
         "SH|XX|SH",
         "XX|SH|XX",
     ],
-    category: "Tech",
+    category: "machines",
     tempHigh: 8000,
     stateHigh: ["molten_steel","explosion","molten_iron"]
 };
@@ -21,7 +21,7 @@ elements.pc_core = {
 elements.red_wire = {
     color: "#ff3d1f",
     behavior: behaviors.WALL,
-    category: "Tech",
+    category: "machines",
     insulate: true,
     conduct: 3,
     noMix: true
@@ -30,7 +30,7 @@ elements.red_wire = {
 elements.green_wire = {
     color: "#66c22d",
     behavior: behaviors.WALL,
-    category: "Tech",
+    category: "machines",
     insulate: true,
     conduct: 3,
     noMix: true
@@ -39,7 +39,7 @@ elements.green_wire = {
 elements.blue_wire = {
     color: "#1f81cc",
     behavior: behaviors.WALL,
-    category: "Tech",
+    category: "machines",
     insulate: true,
     conduct: 3,
     noMix: true
@@ -48,7 +48,7 @@ elements.blue_wire = {
 elements.electrogalvanized = {
     color: "#6c6e70",
     behavior: behaviors.WALL,
-    category: "Tech",
+    category: "machines",
     state: "solid",
     conduct: 2,
     density: 7850,