diff --git a/kubejs/assets/tfc/patchouli_books/field_guide/en_us/entries/mechanics/surface_kaolin.json b/kubejs/assets/tfc/patchouli_books/field_guide/en_us/entries/mechanics/surface_kaolin.json
index fd09d1448..57babae20 100644
--- a/kubejs/assets/tfc/patchouli_books/field_guide/en_us/entries/mechanics/surface_kaolin.json
+++ b/kubejs/assets/tfc/patchouli_books/field_guide/en_us/entries/mechanics/surface_kaolin.json
@@ -1,7 +1,7 @@
 {
     "name": "Kaolin Clay",
     "icon": "tfc:kaolin_clay",
-    "category": "tfc:tfg_ores",
+    "category": "tfc:mechanics",
 	"read_by_default": true,
     "pages": [
         {
diff --git a/kubejs/assets/tfc/patchouli_books/field_guide/ru_ru/entries/mechanics/surface_kaolin.json b/kubejs/assets/tfc/patchouli_books/field_guide/ru_ru/entries/mechanics/surface_kaolin.json
index 54ee02944..e8a37ff2f 100644
--- a/kubejs/assets/tfc/patchouli_books/field_guide/ru_ru/entries/mechanics/surface_kaolin.json
+++ b/kubejs/assets/tfc/patchouli_books/field_guide/ru_ru/entries/mechanics/surface_kaolin.json
@@ -1,7 +1,7 @@
 {
     "name": "Каолинитовая глина",
     "icon": "tfc:kaolin_clay",
-    "category": "tfc:tfg_ores",
+    "category": "tfc:mechanics",
 	"read_by_default": true,
     "pages": [
         {
diff --git a/kubejs/assets/tfc/patchouli_books/field_guide/uk_ua/entries/mechanics/surface_kaolin.json b/kubejs/assets/tfc/patchouli_books/field_guide/uk_ua/entries/mechanics/surface_kaolin.json
index 98889460d..d08459688 100644
--- a/kubejs/assets/tfc/patchouli_books/field_guide/uk_ua/entries/mechanics/surface_kaolin.json
+++ b/kubejs/assets/tfc/patchouli_books/field_guide/uk_ua/entries/mechanics/surface_kaolin.json
@@ -1,7 +1,7 @@
 {
     "name": "Каолінова глина",
     "icon": "tfc:kaolin_clay",
-    "category": "tfc:tfg_ores",
+    "category": "tfc:mechanics",
     "read_by_default": true,
     "pages": [
         {