diff --git a/buildSrc/src/main/kotlin/karakum/mui/Generator.kt b/buildSrc/src/main/kotlin/karakum/mui/Generator.kt
index 706c3aeb4..d2ab3e256 100644
--- a/buildSrc/src/main/kotlin/karakum/mui/Generator.kt
+++ b/buildSrc/src/main/kotlin/karakum/mui/Generator.kt
@@ -133,7 +133,7 @@ sealed external interface Size {
         val small: small
 
         @JsValue("medium")
-        val pkcs8: medium
+        val medium: medium
 
         @JsValue("normal")
         val normal: normal
diff --git a/mui-kotlin/src/jsMain/kotlin/mui/material/Size.kt b/mui-kotlin/src/jsMain/kotlin/mui/material/Size.kt
index 4adf9afe5..a5b4d5b49 100644
--- a/mui-kotlin/src/jsMain/kotlin/mui/material/Size.kt
+++ b/mui-kotlin/src/jsMain/kotlin/mui/material/Size.kt
@@ -12,7 +12,7 @@ sealed external interface Size {
         val small: small
 
         @JsValue("medium")
-        val pkcs8: medium
+        val medium: medium
 
         @JsValue("normal")
         val normal: normal