diff --git a/src/OpenFOAM/db/IOstreams/memory/ISpanStream.H b/src/OpenFOAM/db/IOstreams/memory/ISpanStream.H
index 9b03bf7bbd..d1d259b193 100644
--- a/src/OpenFOAM/db/IOstreams/memory/ISpanStream.H
+++ b/src/OpenFOAM/db/IOstreams/memory/ISpanStream.H
@@ -119,10 +119,10 @@ public:
         #if __cplusplus >= 201703L
         //- Construct (shallow copy) from std::string_view content
         explicit ispanstream(std::string_view s)
-        {
+        :
             buffer_type(const_cast<char*>(s.data()), s.size()),
-            stream_type(static_cast<buffer_type*>(this));
-        }
+            stream_type(static_cast<buffer_type*>(this))
+        {}
         #endif
 
         //- Construct (shallow copy) from span character content