--- parser.c~	2021-02-04 00:51:34.000000000 +0400
+++ parser.c	2021-02-05 12:42:43.616635640 +0400
@@ -1274,7 +1274,7 @@
 			do {
 				STPUTC(c, out);
 				c = pgetc_eatbnl();
-			} while (!subtype && is_digit(c));
+			} while ((!subtype || subtype == VSLENGTH) && is_digit(c));
 		} else if (c != '}') {
 			int cc = c;