diff --git a/util/compression.h b/util/compression.h
index 5ce419c9c..207f9949e 100644
--- a/util/compression.h
+++ b/util/compression.h
@@ -1224,8 +1224,10 @@ inline bool LZ4HC_Compress(const CompressionInfo& info,
   const char* compression_dict_data =
       compression_dict.size() > 0 ? compression_dict.data() : nullptr;
   size_t compression_dict_size = compression_dict.size();
-  LZ4_loadDictHC(stream, compression_dict_data,
-                 static_cast<int>(compression_dict_size));
+  if (compression_dict_data != nullptr) {
+    LZ4_loadDictHC(stream, compression_dict_data,
+                  static_cast<int>(compression_dict_size));
+  }
 
 #if LZ4_VERSION_NUMBER >= 10700  // r129+
   outlen =