diff --git a/applications/gui/modules/text_input.c b/applications/gui/modules/text_input.c
index 711f28a326b..65864c6c179 100644
--- a/applications/gui/modules/text_input.c
+++ b/applications/gui/modules/text_input.c
@@ -131,7 +131,9 @@ static bool char_is_lowercase(char letter) {
 }
 
 static char char_to_uppercase(const char letter) {
-    if(isalpha(letter)) {
+    if(letter == '_') {
+        return 0x20;
+    } else if(isalpha(letter)) {
         return (letter - 0x20);
     } else {
         return letter;