diff --git a/Lib/test/test_fstring.py b/Lib/test/test_fstring.py
index dd58e032a8befe..f54557056784f2 100644
--- a/Lib/test/test_fstring.py
+++ b/Lib/test/test_fstring.py
@@ -1380,7 +1380,7 @@ def test_conversions(self):
         for conv in ' s', ' s ':
             self.assertAllRaise(SyntaxError,
                                 "f-string: conversion type must come right after the"
-                                " exclamanation mark",
+                                " exclamation mark",
                                 ["f'{3!" + conv + "}'"])
 
         self.assertAllRaise(SyntaxError,
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-06-14-01-01-14.gh-issue-135496.ER0Me3.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-06-14-01-01-14.gh-issue-135496.ER0Me3.rst
new file mode 100644
index 00000000000000..03b1f4590c5846
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2025-06-14-01-01-14.gh-issue-135496.ER0Me3.rst
@@ -0,0 +1 @@
+Fix typo in the f-string conversion type error ("exclamanation" -> "exclamation").
diff --git a/Parser/action_helpers.c b/Parser/action_helpers.c
index 3bcc0870882a29..0d362bf7a9111a 100644
--- a/Parser/action_helpers.c
+++ b/Parser/action_helpers.c
@@ -965,7 +965,7 @@ _PyPegen_check_fstring_conversion(Parser *p, Token* conv_token, expr_ty conv)
     if (conv_token->lineno != conv->lineno || conv_token->end_col_offset != conv->col_offset) {
         return RAISE_SYNTAX_ERROR_KNOWN_RANGE(
             conv_token, conv,
-            "%c-string: conversion type must come right after the exclamanation mark",
+            "%c-string: conversion type must come right after the exclamation mark",
             TOK_GET_STRING_PREFIX(p->tok)
         );
     }