diff --git a/cc_types.c b/cc_types.c
index fec2099..ddcb703 100644
--- a/cc_types.c
+++ b/cc_types.c
@@ -191,6 +191,11 @@ struct type* build_member(struct type* last, int offset)
 	{
 		global_token = global_token->next;
 		i->size = member_type->type->size * numerate_string(global_token->s);
+		if(0 == i->size)
+		{
+			file_print("Struct only supports [num] form\n", stderr);
+			exit(EXIT_FAILURE);
+		}
 		global_token = global_token->next;
 		require_match("Struct only supports [num] form\n", "]");
 	}
diff --git a/test/test.answers b/test/test.answers
index 9be8958..ff119c7 100644
--- a/test/test.answers
+++ b/test/test.answers
@@ -53,10 +53,10 @@ a0ae067746e7a2b01d33950da1cf640e12c3a70a045ab331ea2025af59dec9af  test/results/t
 1154f39f25dcd6d914e9a542306f95280926baf985d011b2152c7ea0b87ab42d  test/results/test10-knight-native-binary
 c1b5a2a3cd46c5e95e5540e871c2a916e028684ca80f51c001ef489342e27625  test/results/test10-knight-posix-binary
 b3e13d54aab689137628fb9c4487bfd8288f9bd18bef8fe756577c8d2dce1f1f  test/results/test10-x86-binary
-f0335de446051beeed5428a21137c62bf9ee61f84e66722ee730cb2549f4cbf9  test/results/test100-amd64-binary
-04ca0dcaea76641c221646b5b69d22c3fdc595b57778d515a91e698f385a19d6  test/results/test100-armv7l-binary
-dd3e83e71ca4044443d011ccf2601fd8cdce60e1b2452769e1725df3db066038  test/results/test100-knight-posix-binary
-56dd73c995c3b165753784fcf36f3c0d6c55ccbc2c7ee9bdcfb91c6cc7421a0e  test/results/test100-x86-binary
+a09663fc3432a2a9df302076576e2707b5ebd4f08c3bd3dbb978b5236f68860c  test/results/test100-amd64-binary
+33fa3fda1ac2e1830187bcdaa49781b5b2cd7fca0dbdd230503c1b96eee1b826  test/results/test100-armv7l-binary
+3ceee365237e1cbb8408ea93a0eb5d47d71d7e6c17a9be7e64d0ca85eee7e7ef  test/results/test100-knight-posix-binary
+2737c4fd5c501f53f8607161d8c7b38d7634c9da0d4a6e86b74128d02eec2519  test/results/test100-x86-binary
 34e6d535e30ef8826a4ad1a4d08b76cfa370c54595599ad3be784b64c9cd8ec5  test/results/test11-amd64-binary
 893695e6f300a0fe055fad935a56abd549bba70d1d39c535a680f41bbb73f117  test/results/test11-armv7l-binary
 955b564d2c89abf2cfc6c80d766cd11479d146b828dec69e654b0958a62d5e6e  test/results/test11-knight-native-binary
diff --git a/test/test100/proof.answer b/test/test100/proof.answer
index 431cc2f..6600b66 100644
--- a/test/test100/proof.answer
+++ b/test/test100/proof.answer
@@ -1 +1 @@
-59600f9625ed7a9608b41d3deeac923152d387813e37237b6e327960dc0d17c9  test/test100/proof
+64c0333dbf94a040af735f1c02e00de38e734abf4ebdea5205f4765b8e2bc0c7  test/test100/proof