diff --git a/src/fsfw/serialize/SerialBufferAdapter.cpp b/src/fsfw/serialize/SerialBufferAdapter.cpp
index 01eb76f9..c9bdcbf0 100644
--- a/src/fsfw/serialize/SerialBufferAdapter.cpp
+++ b/src/fsfw/serialize/SerialBufferAdapter.cpp
@@ -130,3 +130,5 @@ template class SerialBufferAdapter<uint8_t>;
 template class SerialBufferAdapter<uint16_t>;
 template class SerialBufferAdapter<uint32_t>;
 template class SerialBufferAdapter<uint64_t>;
+template class SerialBufferAdapter<size_t>;
+