diff --git a/code/modules/mob/living/silicon/pai/pai.dm b/code/modules/mob/living/silicon/pai/pai.dm
index 561a2c3fe23..039c64e663d 100644
--- a/code/modules/mob/living/silicon/pai/pai.dm
+++ b/code/modules/mob/living/silicon/pai/pai.dm
@@ -123,7 +123,7 @@
 	add_language(LANGUAGE_GUTTER, 1)
 	add_language(LANGUAGE_EAL, 1)
 	add_language(LANGUAGE_TERMINUS, 1)
-	add_language(LANGUAGE_SIGN, 0)
+	add_language(LANGUAGE_SIGN, 1)
 
 	verbs += /mob/living/silicon/pai/proc/choose_chassis
 	verbs += /mob/living/silicon/pai/proc/choose_verbs