1 files changed, 1 insertions, 1 deletions

diff --git a/src/regex.h b/src/regex.h
index 1d439de259c..5e3a79763ec 100644
--- a/src/regex.h
+++ b/src/regex.h
@@ -21,7 +21,7 @@
 #define _REGEX_H 1
 
 #if defined emacs && (defined _REGEX_RE_COMP || defined _LIBC)
-/* We’re not defining re_set_syntax and using a different prototype of
+/* We're not defining re_set_syntax and using a different prototype of
    re_compile_pattern when building Emacs so fail compilation early with
    a (somewhat helpful) error message when conflict is detected. */
 # error "_REGEX_RE_COMP nor _LIBC can be defined if emacs is defined."