diff --git a/snakefmt/parser/parser.py b/snakefmt/parser/parser.py
index e4d7060..d9c0d45 100644
--- a/snakefmt/parser/parser.py
+++ b/snakefmt/parser/parser.py
@@ -1,4 +1,3 @@
-import sys
 import tokenize
 from abc import ABC, abstractmethod
 from typing import NamedTuple, Optional
@@ -11,6 +10,7 @@
     Vocabulary,
     add_token_space,
     is_newline,
+    re_add_curly_bracket_if_needed,
 )
 from snakefmt.types import TAB, Token, TokenIterator, col_nb
 
@@ -325,12 +325,4 @@ def get_next_queriable(self, snakefile: TokenIterator) -> Status:
             if not pythonable and token.type != tokenize.COMMENT:
                 pythonable = True
             buffer += token.string
-            if (
-                token is not None
-                and sys.version_info >= (3, 12)
-                and token.type == tokenize.FSTRING_MIDDLE
-            ):
-                if token.string.endswith("}"):
-                    buffer += "}"
-                elif token.string.endswith("{"):
-                    buffer += "{"
+            buffer += re_add_curly_bracket_if_needed(token)
diff --git a/snakefmt/parser/syntax.py b/snakefmt/parser/syntax.py
index 352c27c..c5e9bd7 100644
--- a/snakefmt/parser/syntax.py
+++ b/snakefmt/parser/syntax.py
@@ -44,6 +44,20 @@
     spacing_triggers[tokenize.OP].add(tokenize.FSTRING_START)
 
 
+def re_add_curly_bracket_if_needed(token: Token) -> str:
+    result = ""
+    if (
+        token is not None
+        and sys.version_info >= (3, 12)
+        and token.type == tokenize.FSTRING_MIDDLE
+    ):
+        if token.string.endswith("}"):
+            result = "}"
+        elif token.string.endswith("{"):
+            result = "{"
+    return result
+
+
 def operator_skip_spacing(prev_token: Token, token: Token) -> bool:
     if prev_token.type != tokenize.OP and token.type != tokenize.OP:
         return False
@@ -333,15 +347,7 @@ def parse_params(self, snakefile: TokenIterator):
         prev_token = None
         while True:
             cur_param = self.process_token(cur_param, prev_token)
-            if (
-                self.token is not None
-                and sys.version_info >= (3, 12)
-                and self.token.type == tokenize.FSTRING_MIDDLE
-            ):
-                if self.token.string.endswith("}"):
-                    cur_param.value += "}"
-                elif self.token.string.endswith("{"):
-                    cur_param.value += "{"
+            cur_param.value += re_add_curly_bracket_if_needed(self.token)
             try:
                 prev_token = self.token
                 self.token = next(snakefile)