format string fixes

1 files changed, 1 insertions, 1 deletions

diff --git a/src/MXF.h b/src/MXF.h
index da9c498..a38b6db 100755
--- a/src/MXF.h
+++ b/src/MXF.h
@@ -64,7 +64,7 @@ namespace ASDCP
 
 	      inline const char* EncodeString(char* str_buf, ui32_t buf_len) const {
 		Kumu::ui64Printer offset_str(ByteOffset);
-		snprintf(str_buf, buf_len, "%-6lu: %s", BodySID, offset_str.c_str());
+		snprintf(str_buf, buf_len, "%-6u: %s", BodySID, offset_str.c_str());
 		return str_buf;
 	      }