diff --git a/src/string.h b/src/string.h
index 3f5bfb80..055c1fc9 100644
--- a/src/string.h
+++ b/src/string.h
@@ -33,6 +33,7 @@ SOFTWARE.
 
 #include "platform.h"
 #include "basic_string.h"
+#include "hash.h"
 
 #if defined(ETL_COMPILER_MICROSOFT)
   #undef min
@@ -180,6 +181,22 @@ namespace etl
 
     value_type buffer[MAX_SIZE + 1];
   };
+
+  //***************************************************************************
+  /// Specialisation for string.
+  ///\ingroup hash
+  //***************************************************************************
+  template <>
+  struct hash <string>
+  {
+    size_t operator ()(const string& s) const
+    {
+      uint8_t* p_begin = &s[0];
+      uint8_t* p_end   = &s[s.size()];
+
+      return etl::__private_hash__::generic_hash(p_begin, p_end);
+    }
+  };
 }
 
 #if defined(ETL_COMPILER_MICROSOFT)
diff --git a/src/u16string.h b/src/u16string.h
index a7ca2b57..138fa916 100644
--- a/src/u16string.h
+++ b/src/u16string.h
@@ -33,6 +33,7 @@ SOFTWARE.
 
 #include "platform.h"
 #include "basic_string.h"
+#include "hash.h"
 
 #if defined(ETL_COMPILER_MICROSOFT)
   #undef min
@@ -180,6 +181,22 @@ namespace etl
 
     value_type buffer[MAX_SIZE + 1];
   };
+
+  //***************************************************************************
+  /// Specialisation for u16string.
+  ///\ingroup hash
+  //***************************************************************************
+  template <>
+  struct hash <u16string>
+  {
+    size_t operator ()(const u16string& s) const
+    {
+      uint8_t* p_begin = &s[0];
+      uint8_t* p_end   = &s[s.size()];
+
+      return etl::__private_hash__::generic_hash(p_begin, p_end);
+    }
+  };
 }
 
 #if defined(ETL_COMPILER_MICROSOFT)
diff --git a/src/u32string.h b/src/u32string.h
index 5890f1c7..8280fbba 100644
--- a/src/u32string.h
+++ b/src/u32string.h
@@ -33,6 +33,7 @@ SOFTWARE.
 
 #include "platform.h"
 #include "basic_string.h"
+#include "hash.h"
 
 #if defined(ETL_COMPILER_MICROSOFT)
   #undef min
@@ -180,6 +181,22 @@ namespace etl
 
     value_type buffer[MAX_SIZE + 1];
   };
+
+  //***************************************************************************
+  /// Specialisation for u32string.
+  ///\ingroup hash
+  //***************************************************************************
+  template <>
+  struct hash <u32string>
+  {
+    size_t operator ()(const u32string& s) const
+    {
+      uint8_t* p_begin = &s[0];
+      uint8_t* p_end   = &s[s.size()];
+
+      return etl::__private_hash__::generic_hash(p_begin, p_end);
+    }
+  };
 }
 
 #if defined(ETL_COMPILER_MICROSOFT)
diff --git a/src/wstring.h b/src/wstring.h
index 8019a29f..94bebc6b 100644
--- a/src/wstring.h
+++ b/src/wstring.h
@@ -33,6 +33,7 @@ SOFTWARE.
 
 #include "platform.h"
 #include "basic_string.h"
+#include "hash.h"
 
 #if defined(ETL_COMPILER_MICROSOFT)
   #undef min
@@ -181,6 +182,22 @@ namespace etl
 
     value_type buffer[MAX_SIZE + 1];
   };
+
+  //***************************************************************************
+  /// Specialisation for wstring.
+  ///\ingroup hash
+  //***************************************************************************
+  template <>
+  struct hash <wstring>
+  {
+    size_t operator ()(const wstring& s) const
+    {
+      uint8_t* p_begin = &s[0];
+      uint8_t* p_end   = &s[s.size()];
+
+      return etl::__private_hash__::generic_hash(p_begin, p_end);
+    }
+  };
 }
 
 #if defined(ETL_COMPILER_MICROSOFT)