diff --git a/array/parray.cpp b/array/parray.cpp
index 7147f0d5..9b3da5a4 100644
--- a/array/parray.cpp
+++ b/array/parray.cpp
@@ -18,9 +18,9 @@ using cruft::parray;
 
 ///////////////////////////////////////////////////////////////////////////////
 template <typename DataT, typename SizeT>
-parray<DataT,SizeT>::parray (DataT *_data, SizeT _size)
-    : m_data (_data)
-    , m_size (_size)
+parray<DataT,SizeT>::parray (SizeT _size, DataT *_data)
+    : m_size (_size)
+    , m_data (_data)
 { ; }
 
 
diff --git a/array/parray.hpp b/array/parray.hpp
index 767eab27..b4909c0b 100644
--- a/array/parray.hpp
+++ b/array/parray.hpp
@@ -31,12 +31,12 @@ namespace cruft {
         using const_iterator = DataT const*;
         using difference_type = std::ptrdiff_t;
 
-        parray (DataT *data, SizeT size);
+        parray (SizeT size, DataT *data);
 
         template <SizeT SizeV>
         explicit
         parray (DataT (&data)[SizeV]):
-            parray (data+0, SizeV)
+            parray (SizeV, data+0)
         { ; }
 
         parray (parray const&) noexcept = default;
@@ -63,8 +63,8 @@ namespace cruft {
         SizeT size (void) const;
 
     private:
-        DataT *m_data;
         SizeT m_size;
+        DataT *m_data;
     };