diff --git a/java/res/xml/method.xml b/java/res/xml/method.xml
index 33a10fa..64929ad 100644
--- a/java/res/xml/method.xml
+++ b/java/res/xml/method.xml
@@ -626,6 +626,7 @@
     />
     <!-- TODO: This Sinhala keyboard is a preliminary layout.
                This isn't based on the final specification. -->
+    <!-- si_LK is currently disabled due to lack of combination rules.
     <subtype android:icon="@drawable/ic_ime_switcher_dark"
             android:label="@string/subtype_generic"
             android:subtypeId="0x5c6b3bde"
@@ -634,6 +635,7 @@
             android:imeSubtypeExtraValue="KeyboardLayoutSet=sinhala,EmojiCapable"
             android:isAsciiCapable="false"
     />
+    -->
     <subtype android:icon="@drawable/ic_ime_switcher_dark"
             android:label="@string/subtype_generic"
             android:subtypeId="0x8e94d413"
@@ -693,6 +695,7 @@
             android:isAsciiCapable="false"
     />
     <!-- TODO: Enabling/Disabling ta_LK subtype must be aligned with si_LK subtype. -->
+    <!-- ta_LK disabled alongside si_LK subtype due to lack of combination rules.
     <subtype android:icon="@drawable/ic_ime_switcher_dark"
             android:label="@string/subtype_generic"
             android:subtypeId="0x6ca12d84"
@@ -701,6 +704,7 @@
             android:imeSubtypeExtraValue="KeyboardLayoutSet=tamil,EmojiCapable"
             android:isAsciiCapable="false"
     />
+    !-->
     <subtype android:icon="@drawable/ic_ime_switcher_dark"
             android:label="@string/subtype_generic"
             android:subtypeId="0x785abbd9"