diff --git a/quests.c b/quests.c
index ffbf0b4..98ee192 100644
--- a/quests.c
+++ b/quests.c
@@ -63,11 +63,6 @@ int validate_quest_bin(const QUEST_BIN_HEADER *header, uint32_t length, bool pri
 			printf("Quest bin file issue: blank quest name\n");
 		result |= QUESTBIN_ERROR_NAME;
 	}
-	if (header->quest_number_word == 0) {
-		if (print_errors)
-			printf("Quest bin file issue: quest_number is zero\n");
-		result |= QUESTBIN_ERROR_NAME;
-	}
 	if (header->episode > 1) {
 		if (print_errors)
 			printf("Quest bin file issue: unexpected episode value %d, quest was probably created using a 16-bit quest_number\n", header->episode);
diff --git a/quests.h b/quests.h
index 311202e..db41f1b 100644
--- a/quests.h
+++ b/quests.h
@@ -11,8 +11,7 @@
 #define QUESTBIN_ERROR_LARGER_BIN_SIZE     2
 #define QUESTBIN_ERROR_SMALLER_BIN_SIZE    4
 #define QUESTBIN_ERROR_NAME                8
-#define QUESTBIN_ERROR_NUMBER              16
-#define QUESTBIN_ERROR_EPISODE             32
+#define QUESTBIN_ERROR_EPISODE             16
 
 #define QUESTDAT_ERROR_TYPE                1
 #define QUESTDAT_ERROR_TABLE_BODY_SIZE     2