diff --git a/Lib/csharp/csharp.swg b/Lib/csharp/csharp.swg
index 6ef2d188c..9141f1971 100644
--- a/Lib/csharp/csharp.swg
+++ b/Lib/csharp/csharp.swg
@@ -841,6 +841,7 @@ using System.Runtime.InteropServices;
 /* Some ANSI C typemaps */
 
 %apply unsigned long { size_t };
+%apply const unsigned long & { const size_t & };
 
 /* csharp keywords */
 %include <csharpkw.swg>
diff --git a/Lib/csharp/std_common.i b/Lib/csharp/std_common.i
index 77044703a..cee11e8ca 100644
--- a/Lib/csharp/std_common.i
+++ b/Lib/csharp/std_common.i
@@ -1,4 +1,5 @@
 %include <std_except.i>
 
 %apply size_t { std::size_t };
+%apply const size_t& { const std::size_t& };
 
diff --git a/Lib/java/java.swg b/Lib/java/java.swg
index 5d0dccc62..af76e11b4 100644
--- a/Lib/java/java.swg
+++ b/Lib/java/java.swg
@@ -1185,6 +1185,7 @@ SWIG_PROXY_CONSTRUCTOR(true, true, SWIGTYPE)
 /* Some ANSI C typemaps */
 
 %apply unsigned long { size_t };
+%apply const unsigned long & { const size_t & };
 
 /* java keywords */
 %include <javakw.swg>
diff --git a/Lib/java/std_common.i b/Lib/java/std_common.i
index 77044703a..cee11e8ca 100644
--- a/Lib/java/std_common.i
+++ b/Lib/java/std_common.i
@@ -1,4 +1,5 @@
 %include <std_except.i>
 
 %apply size_t { std::size_t };
+%apply const size_t& { const std::size_t& };