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-rw-r--r--src/matfile.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/matfile.c b/src/matfile.c
index 0643921..c629db0 100644
--- a/src/matfile.c
+++ b/src/matfile.c
@@ -39,7 +39,7 @@ bool write_data(FILE *file, const mData_t data) {
const size_t padding = data.tag.size % 8;
const uint8_t padding_buffer[8] = {0};
if (padding > 0 && success) {
- success = (fwrite((const void *)padding_buffer, 1, padding, file) == padding) && success;
+ success = (fwrite((const void *)padding_buffer, 1, (8 - padding), file) == padding) && success;
}
return success;