diff --git a/src/common/stringTools.cpp b/src/common/stringTools.cpp
index 55520f7fc..0df74453a 100644
--- a/src/common/stringTools.cpp
+++ b/src/common/stringTools.cpp
@@ -124,4 +124,12 @@ void kiwix::printStringInHexadecimal(const char *s) {
   std::cout << std::endl;
 }
 
+void kiwix::stringReplacement(std::string& str, const std::string& oldStr, const std::string& newStr) {
+  size_t pos = 0;
+  while((pos = str.find(oldStr, pos)) != std::string::npos) {
+    str.replace(pos, oldStr.length(), newStr);
+    pos += newStr.length();
+  }
+}
+
 
diff --git a/src/common/stringTools.h b/src/common/stringTools.h
index eaf81a38b..8d6f41766 100644
--- a/src/common/stringTools.h
+++ b/src/common/stringTools.h
@@ -46,8 +46,10 @@ namespace kiwix {
   void printStringInHexadecimal(const char *s);
   void printStringInHexadecimal(UnicodeString s);
 
-  std::string ucFirst (const std::string &word);
-  std::string lcFirst (const std::string &word);
+  std::string ucFirst(const std::string &word);
+  std::string lcFirst(const std::string &word);
+  
+  void stringReplacement(std::string& str, const std::string& oldStr, const std::string& newStr);
 }
 
 #endif