diff --git a/codegen/lib/templates/kotlin/ios_parameter_access.erb b/codegen/lib/templates/kotlin/ios_parameter_access.erb
index 740b45c4708..b16ce477107 100644
--- a/codegen/lib/templates/kotlin/ios_parameter_access.erb
+++ b/codegen/lib/templates/kotlin/ios_parameter_access.erb
@@ -5,23 +5,23 @@
     method.parameters.each do |param| -%>
 <%    if param.type.name == :data -%>
 <%      if param.type.is_nullable -%>
-<%= ' ' * more_index %>        val <%= param.name %>Data = if (<%= param.name %> == null) {
+<%= ' ' * more_index %>        val <%= KotlinHelper.fix_name(param.name) %>Data = if (<%= KotlinHelper.fix_name(param.name) %> == null) {
 <%= ' ' * more_index %>            null
 <%= ' ' * more_index %>        } else {
-<%= ' ' * more_index %>            TWDataCreateWithBytes(<%= param.name %>.toUByteArray().toCValues(), <%= param.name %>.size.toULong())
+<%= ' ' * more_index %>            TWDataCreateWithBytes(<%= KotlinHelper.fix_name(param.name) %>.toUByteArray().toCValues(), <%= KotlinHelper.fix_name(param.name) %>.size.toULong())
 <%= ' ' * more_index %>        }
 <%      else -%>
-<%= ' ' * more_index %>        val <%= param.name %>Data = TWDataCreateWithBytes(<%= param.name %>.toUByteArray().toCValues(), <%= param.name %>.size.toULong())
+<%= ' ' * more_index %>        val <%= KotlinHelper.fix_name(param.name) %>Data = TWDataCreateWithBytes(<%= KotlinHelper.fix_name(param.name) %>.toUByteArray().toCValues(), <%= KotlinHelper.fix_name(param.name) %>.size.toULong())
 <%      end -%>
 <%    elsif param.type.name == :string -%>
 <%      if param.type.is_nullable -%>
-<%= ' ' * more_index %>        val <%= param.name %>String = if (<%= param.name %> == null) {
+<%= ' ' * more_index %>        val <%= KotlinHelper.fix_name(param.name) %>String = if (<%= KotlinHelper.fix_name(param.name) %> == null) {
 <%= ' ' * more_index %>            null
 <%= ' ' * more_index %>        } else {
-<%= ' ' * more_index %>            TWStringCreateWithUTF8Bytes(<%= param.name %>)
+<%= ' ' * more_index %>            TWStringCreateWithUTF8Bytes(<%= KotlinHelper.fix_name(param.name) %>)
 <%= ' ' * more_index %>        }
 <%      else -%>
-<%= ' ' * more_index %>        val <%= param.name %>String = TWStringCreateWithUTF8Bytes(<%= param.name %>)
+<%= ' ' * more_index %>        val <%= KotlinHelper.fix_name(param.name) %>String = TWStringCreateWithUTF8Bytes(<%= KotlinHelper.fix_name(param.name) %>)
 <%      end -%>
 <%    end -%>
 <%  end -%>
diff --git a/codegen/lib/templates/kotlin/ios_parameter_release.erb b/codegen/lib/templates/kotlin/ios_parameter_release.erb
index 2a1a3e2c5b2..8f90bb6aeaf 100644
--- a/codegen/lib/templates/kotlin/ios_parameter_release.erb
+++ b/codegen/lib/templates/kotlin/ios_parameter_release.erb
@@ -5,19 +5,19 @@
     method.parameters.each do |param|  -%>
 <%    if param.type.name == :data -%>
 <%      if param.type.is_nullable -%>
-<%= ' ' * more_index %>        if (<%= param.name %>Data != null) {
-<%= ' ' * more_index %>            TWDataDelete(<%= param.name %>Data)
+<%= ' ' * more_index %>        if (<%= KotlinHelper.fix_name(param.name) %>Data != null) {
+<%= ' ' * more_index %>            TWDataDelete(<%= KotlinHelper.fix_name(param.name) %>Data)
 <%= ' ' * more_index %>        }
 <%      else -%>
-<%= ' ' * more_index %>        TWDataDelete(<%= param.name %>Data)
+<%= ' ' * more_index %>        TWDataDelete(<%= KotlinHelper.fix_name(param.name) %>Data)
 <%      end -%>
 <%    elsif param.type.name == :string -%>
 <%      if param.type.is_nullable -%>
-<%= ' ' * more_index %>        if (<%= param.name %>String != null) {
-<%= ' ' * more_index %>            TWStringDelete(<%= param.name %>String)
+<%= ' ' * more_index %>        if (<%= KotlinHelper.fix_name(param.name) %>String != null) {
+<%= ' ' * more_index %>            TWStringDelete(<%= KotlinHelper.fix_name(param.name) %>String)
 <%= ' ' * more_index %>        }
 <%      else -%>
-<%= ' ' * more_index %>        TWStringDelete(<%= param.name %>String)
+<%= ' ' * more_index %>        TWStringDelete(<%= KotlinHelper.fix_name(param.name) %>String)
 <%      end -%>
 <%    end -%>
 <%  end -%>