diff --git a/error.c b/error.c
index 5d8cb82b62..d1dfd03a9d 100644
--- a/error.c
+++ b/error.c
@@ -751,7 +751,7 @@ die(void)
 }
 
 void
-rb_bug_without_die(const char *fmt, ...)
+rb_bug_without_die(const char *fmt, va_list args)
 {
     const char *file = NULL;
     int line = 0;
@@ -760,7 +760,7 @@ rb_bug_without_die(const char *fmt, ...)
         file = rb_source_location_cstr(&line);
     }
 
-    report_bug(file, line, fmt, NULL);
+    report_bug_valist(file, line, fmt, NULL, args);
 }
 
 void
diff --git a/version.h b/version.h
index e40891fa06..c85c9388df 100644
--- a/version.h
+++ b/version.h
@@ -12,7 +12,7 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 37
+#define RUBY_PATCHLEVEL 38
 
 #define RUBY_RELEASE_YEAR 2021
 #define RUBY_RELEASE_MONTH 2