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diff --git a/src/descriptor.cpp b/src/descriptor.cpp
index 8c914a9..beaf4d7 100644
--- a/src/descriptor.cpp
+++ b/src/descriptor.cpp
@@ -17,6 +17,9 @@ Descriptor::Descriptor(const uint8_t * const buffer)
descriptorTag = buffer[0];
descriptorLength = buffer[1];
+ if (!descriptorLength)
+ descriptorLength = 1;
+
dataBytes.resize(descriptorLength);
memcpy(&dataBytes[0], &buffer[2], descriptorLength);