diff --git a/src/taglist.c b/src/taglist.c
index fcce7adc3..5174fe2d7 100644
--- a/src/taglist.c
+++ b/src/taglist.c
@@ -41,12 +41,13 @@ void Taglist_AddToSectors (const size_t tag, const size_t itemid)
 void Taglist_AddToLines (const size_t tag, const size_t itemid)
 {
 	taggroup_t* tagelems;
-	if (!tags_lines[tag])
-		tags_lines[tag] = Z_Calloc(sizeof(taggroup_t), PU_LEVEL, NULL);
 
 	if (tag == -1)
 		return;
 
+	if (!tags_lines[tag])
+		tags_lines[tag] = Z_Calloc(sizeof(taggroup_t), PU_LEVEL, NULL);
+
 	tagelems = tags_lines[tag];
 	tagelems->count++;
 	tagelems->elements = Z_Realloc(tagelems->elements, tagelems->count * sizeof(size_t), PU_LEVEL, NULL);
@@ -56,12 +57,13 @@ void Taglist_AddToLines (const size_t tag, const size_t itemid)
 void Taglist_AddToMapthings (const size_t tag, const size_t itemid)
 {
 	taggroup_t* tagelems;
-	if (!tags_mapthings[tag])
-		tags_mapthings[tag] = Z_Calloc(sizeof(taggroup_t), PU_LEVEL, NULL);
 
 	if (tag == -1)
 		return;
 
+	if (!tags_mapthings[tag])
+		tags_mapthings[tag] = Z_Calloc(sizeof(taggroup_t), PU_LEVEL, NULL);
+
 	tagelems = tags_mapthings[tag];
 	tagelems->count++;
 	tagelems->elements = Z_Realloc(tagelems->elements, tagelems->count * sizeof(size_t), PU_LEVEL, NULL);