1 files changed, 6 insertions, 0 deletions
diff --git a/sprintf.c b/sprintf.c
index e91d1f7e88..eed2c92282 100644
--- a/sprintf.c
+++ b/sprintf.c
@@ -1378,6 +1378,12 @@ ruby__sfvextra(rb_printf_buffer *fp, size_t valsize, void *valp, long *sz, int s
 	}
 	value = rb_inspect(value);
     }
+    else if (SYMBOL_P(value)) {
+	value = rb_sym2str(value);
+	if (sign == ' ' && !rb_str_symname_p(value)) {
+	    value = rb_str_inspect(value);
+	}
+    }
     else {
 	value = rb_obj_as_string(value);
 	if (sign == ' ') value = QUOTE(value);