diff --git a/include/bitsery/adapter/buffer.h b/include/bitsery/adapter/buffer.h
index 7dc8ae8..c392f53 100644
--- a/include/bitsery/adapter/buffer.h
+++ b/include/bitsery/adapter/buffer.h
@@ -23,6 +23,7 @@
 #ifndef BITSERY_ADAPTER_BUFFER_H
 #define BITSERY_ADAPTER_BUFFER_H
 
+#include "../bitsery.h"
 #include "../details/adapter_bit_packing.h"
 #include "../traits/core/traits.h"
 #include <algorithm>
@@ -276,7 +277,7 @@ private:
     }
   }
 
-  void maybeResize(size_t newOffset, std::false_type)
+  void maybeResize(BITSERY_MAYBE_UNUSED size_t newOffset, std::false_type)
   {
     assert(newOffset <= _bufferSize);
   }
diff --git a/include/bitsery/bitsery.h b/include/bitsery/bitsery.h
index f3b443a..3d38bce 100644
--- a/include/bitsery/bitsery.h
+++ b/include/bitsery/bitsery.h
@@ -36,6 +36,12 @@
   BITSERY_BUILD_VERSION_STR(                                                   \
     BITSERY_MAJOR_VERSION, BITSERY_MINOR_VERSION, BITSERY_PATCH_VERSION)
 
+#if __cplusplus > 201402L
+#define BITSERY_MAYBE_UNUSED [[maybe_unused]]
+#else
+#define BITSERY_MAYBE_UNUSED
+#endif
+
 #include "deserializer.h"
 #include "serializer.h"
 
diff --git a/include/bitsery/ext/growable.h b/include/bitsery/ext/growable.h
index 1266a92..f6458c2 100644
--- a/include/bitsery/ext/growable.h
+++ b/include/bitsery/ext/growable.h
@@ -24,6 +24,7 @@
 #define BITSERY_EXT_GROWABLE_H
 
 #include "../traits/core/traits.h"
+#include <cstdint>
 
 namespace bitsery {
 
diff --git a/include/bitsery/ext/std_bitset.h b/include/bitsery/ext/std_bitset.h
index ad795d8..f34a883 100644
--- a/include/bitsery/ext/std_bitset.h
+++ b/include/bitsery/ext/std_bitset.h
@@ -25,6 +25,7 @@
 
 #include "../traits/core/traits.h"
 #include <bitset>
+#include <cstdint>
 
 namespace bitsery {
 namespace ext {