diff --git a/Content.Server/Corvax/TTS/TTSSystem.Sanitize.cs b/Content.Server/Corvax/TTS/TTSSystem.Sanitize.cs
index 81f2d3920b2..03932af0a2e 100644
--- a/Content.Server/Corvax/TTS/TTSSystem.Sanitize.cs
+++ b/Content.Server/Corvax/TTS/TTSSystem.Sanitize.cs
@@ -137,6 +137,7 @@ private string ReplaceWord2Num(Match word)
             {"с4", "Си 4"}, // cyrillic
             {"c4", "Си 4"}, // latinic
             {"бсс", "Бэ Эс Эс"},
+            {"сии", "Эс И И"},
         };
 
     private static readonly IReadOnlyDictionary<string, string> ReverseTranslit =
diff --git a/Resources/Locale/ru-RU/corvax/speech/speech-chatsan.ftl b/Resources/Locale/ru-RU/corvax/speech/speech-chatsan.ftl
index 0d0e9524a23..43aa0efe9bb 100644
--- a/Resources/Locale/ru-RU/corvax/speech/speech-chatsan.ftl
+++ b/Resources/Locale/ru-RU/corvax/speech/speech-chatsan.ftl
@@ -248,3 +248,5 @@ corvax-chatsan-word-124 = лкм
 corvax-chatsan-replacement-124 = левая рука
 corvax-chatsan-word-125 = пкм
 corvax-chatsan-replacement-125 = правая рука
+corvax-chatsan-word-126 = ЦИИ
+corvax-chatsan-replacement-126 = СИИ
diff --git a/Resources/Prototypes/Accents/word_replacements.yml b/Resources/Prototypes/Accents/word_replacements.yml
index ef7b0f2895f..8d660c02ee5 100644
--- a/Resources/Prototypes/Accents/word_replacements.yml
+++ b/Resources/Prototypes/Accents/word_replacements.yml
@@ -696,6 +696,7 @@
     corvax-chatsan-word-123: corvax-chatsan-replacement-123
     corvax-chatsan-word-124: corvax-chatsan-replacement-124
     corvax-chatsan-word-125: corvax-chatsan-replacement-125
+    corvax-chatsan-word-126: corvax-chatsan-replacement-126
 # Corvax-ChatSanitize-End
 
 - type: accent