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-rw-r--r--src/jplist.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/jplist.c b/src/jplist.c
index 3a38ba3..23fb45b 100644
--- a/src/jplist.c
+++ b/src/jplist.c
@@ -362,6 +362,9 @@ static int node_estimate_size(node_t *node, uint64_t *size, uint32_t depth, int
case PLIST_BOOLEAN:
*size += ((data->boolval) ? 4 : 5);
break;
+ case PLIST_NULL:
+ *size += 4;
+ break;
case PLIST_DICT:
case PLIST_ARRAY:
*size += 2;