diff --git a/libfreerdp/codec/interleaved.c b/libfreerdp/codec/interleaved.c
index 75b2e2775..df148b667 100644
--- a/libfreerdp/codec/interleaved.c
+++ b/libfreerdp/codec/interleaved.c
@@ -237,7 +237,7 @@ static UINT ExtractRunLengthLiteFgBg(const BYTE* pbOrderHdr, const BYTE* pbEnd,
 	runLength = *pbOrderHdr & g_MaskLiteRunLength;
 	if (runLength == 0)
 	{
-		if (!buffer_within_range(pbOrderHdr, 1, pbEnd))
+		if (!buffer_within_range(pbOrderHdr, 2, pbEnd))
 		{
 			*advance = 0;
 			return 0;