diff --git a/DDCore/include/XML/XMLElements.h b/DDCore/include/XML/XMLElements.h
index e9f38bf15e7cc2fca59e96a91a4d554ef27d6ec3..c2a642fe5562a8a8bc9e88cdc213b3250eccd41c 100644
--- a/DDCore/include/XML/XMLElements.h
+++ b/DDCore/include/XML/XMLElements.h
@@ -97,21 +97,21 @@ namespace DD4hep {
     std::string _toString(const char* s);
     /// Do-nothing version. Present for completeness and argument interchangeability  \ingroup DD4HEP_XML
     std::string _toString(const std::string& s);
-    /// Format unsigned long integer to string with atrbitrary format  \ingroup DD4HEP_XML
+    /// Format unsigned long integer to string with arbitrary format  \ingroup DD4HEP_XML
     std::string _toString(unsigned long i, const char* fmt = "%ul");
-    /// Format unsigned integer (32 bits) to string with atrbitrary format  \ingroup DD4HEP_XML
+    /// Format unsigned integer (32 bits) to string with arbitrary format  \ingroup DD4HEP_XML
     std::string _toString(unsigned int i, const char* fmt = "%u");
-    /// Format signed integer (32 bits) to string with atrbitrary format  \ingroup DD4HEP_XML
+    /// Format signed integer (32 bits) to string with arbitrary format  \ingroup DD4HEP_XML
     std::string _toString(int i, const char* fmt = "%d");
-    /// Format signed long integer to string with atrbitrary format  \ingroup DD4HEP_XML
+    /// Format signed long integer to string with arbitrary format  \ingroup DD4HEP_XML
     std::string _toString(long i, const char* fmt = "%fd");
-    /// Format single procision float number (32 bits) to string with atrbitrary format  \ingroup DD4HEP_XML
+    /// Format single procision float number (32 bits) to string with arbitrary format  \ingroup DD4HEP_XML
     std::string _toString(float d, const char* fmt = "%30.30f");
-    /// Format double procision float number (64 bits) to string with atrbitrary format  \ingroup DD4HEP_XML
+    /// Format double procision float number (64 bits) to string with arbitrary format  \ingroup DD4HEP_XML
     std::string _toString(double d, const char* fmt = "%30.30f");
-    /// Format void pointer (64 bits) to string with atrbitrary format  \ingroup DD4HEP_XML
+    /// Format void pointer (64 bits) to string with arbitrary format  \ingroup DD4HEP_XML
     std::string _ptrToString(const void* p, const char* fmt = "%p");
-    /// Format void pointer (64 bits) to string with atrbitrary format  \ingroup DD4HEP_XML
+    /// Format void pointer (64 bits) to string with arbitrary format  \ingroup DD4HEP_XML
     template <typename T> std::string _toString(const T* p, const char* fmt = "%p")
       {      return _ptrToString((void*)p,fmt);       }
 
diff --git a/DDCore/src/XML/XMLElements.cpp b/DDCore/src/XML/XMLElements.cpp
index c9b75f4e3015dd8fda5bbbaab0d344ff80b71d22..261a12535da413ec2999a0f3ba44fc2aea33e2a1 100644
--- a/DDCore/src/XML/XMLElements.cpp
+++ b/DDCore/src/XML/XMLElements.cpp
@@ -211,37 +211,37 @@ std::string DD4hep::XML::_toString(const std::string& s) {
   return _checkEnviron(s);
 }
 
-/// Format unsigned long integer to string with atrbitrary format
+/// Format unsigned long integer to string with arbitrary format
 string DD4hep::XML::_toString(unsigned long v, const char* fmt) {
   return __to_string(v, fmt);
 }
 
-/// Format unsigned integer (32 bits) to string with atrbitrary format
+/// Format unsigned integer (32 bits) to string with arbitrary format
 string DD4hep::XML::_toString(unsigned int v, const char* fmt) {
   return __to_string(v, fmt);
 }
 
-/// Format signed integer (32 bits) to string with atrbitrary format
+/// Format signed integer (32 bits) to string with arbitrary format
 string DD4hep::XML::_toString(int v, const char* fmt) {
   return __to_string(v, fmt);
 }
 
-/// Format signed long integer to string with atrbitrary format
+/// Format signed long integer to string with arbitrary format
 string DD4hep::XML::_toString(long v, const char* fmt)   {
   return __to_string(v, fmt);
 }
 
-/// Format single procision float number (32 bits) to string with atrbitrary format
+/// Format single procision float number (32 bits) to string with arbitrary format
 string DD4hep::XML::_toString(float v, const char* fmt) {
   return __to_string(v, fmt);
 }
 
-/// Format double procision float number (64 bits) to string with atrbitrary format
+/// Format double procision float number (64 bits) to string with arbitrary format
 string DD4hep::XML::_toString(double v, const char* fmt) {
   return __to_string(v, fmt);
 }
 
-/// Format pointer to string with atrbitrary format
+/// Format pointer to string with arbitrary format
 string DD4hep::XML::_ptrToString(const void* v, const char* fmt) {
   return __to_string(v, fmt);
 }