diff --git a/metamethods/cord.c b/metamethods/cord.c
index 4243ffb..f2209b5 100644
--- a/metamethods/cord.c
+++ b/metamethods/cord.c
@@ -85,6 +85,7 @@ static CORD vas_cord(void *x, const char **fmt, va_list args)
 			void *arg = va_arg(args, void*);
 			return fn(x, arg);
 		}
+		case ' ': return "?";
 		default: errx(1, "Unsupported format specifier: '%c'", c);
 	}
 	errx(1, "Unreachable");
diff --git a/nextlang.h b/nextlang.h
index 87cdf03..fda796c 100644
--- a/nextlang.h
+++ b/nextlang.h
@@ -39,6 +39,7 @@ CORD as_cord(void *x, const char *fmt, ...);
                          double: CORD_asprintf("%g", x), float: CORD_asprintf("%g", x), \
                          CORD: x, \
                          char*: (CORD)({ const char *__str = x; __str && __str[0] ? __str : CORD_EMPTY;}), \
+                         array_t: as_cord(&(x), "[ ]"), \
                          default: "???")
 #define __heap(x) (__typeof(x)*)memcpy(GC_MALLOC(sizeof(x)), (__typeof(x)[1]){x}, sizeof(x))
 #define __stack(x) &(x)