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-rw-r--r--src/byte_source.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/byte_source.c b/src/byte_source.c
index df757376..2e4f66cb 100644
--- a/src/byte_source.c
+++ b/src/byte_source.c
@@ -87,6 +87,10 @@ serd_byte_source_open_source(SerdByteSource* const source,
SerdStatus
serd_byte_source_prepare(SerdByteSource* const source)
{
+ if (source->page_size == 0) {
+ return SERD_FAILURE;
+ }
+
source->prepared = true;
if (source->from_stream) {