diff --git a/firmware/application/string_format.cpp b/firmware/application/string_format.cpp
index 30747d739..c6e999c36 100644
--- a/firmware/application/string_format.cpp
+++ b/firmware/application/string_format.cpp
@@ -286,7 +286,7 @@ static const char* whitespace_str = " \t\r\n";
 std::string trim(std::string_view str) {
     auto first = str.find_first_not_of(whitespace_str);
     auto last = str.find_last_not_of(whitespace_str);
-    return std::string{str.substr(first, last - first)};
+    return std::string{str.substr(first, last - first + 1)};
 }
 
 std::string trimr(std::string_view str) {
@@ -296,4 +296,4 @@ std::string trimr(std::string_view str) {
 
 std::string truncate(std::string_view str, size_t length) {
     return std::string{str.length() <= length ? str : str.substr(0, length)};
-}
\ No newline at end of file
+}