1 files changed, 1 insertions, 1 deletions
diff --git a/diff.c b/diff.c
index 0f98bff46b..05dd8f0b56 100644
--- a/diff.c
+++ b/diff.c
@@ -1404,7 +1404,7 @@ static const struct funcname_pattern_entry *funcname_pattern(const char *ident)
 }
 
 static const struct funcname_pattern_entry builtin_funcname_pattern[] = {
-	{ "bibtex", "(@[a-zA-Z]{1,}[ \t]*\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$",
+	{ "bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$",
 	  REG_EXTENDED },
 	{ "html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$", REG_EXTENDED },
 	{ "java",