diff --git a/TODO b/TODO
index fcdbdf19..93e49ada 100644
--- a/TODO
+++ b/TODO
@@ -31,7 +31,6 @@ Version 1.5.0:
     - Implement ranges for slaves and domains.
     - Add -x switch for hex display.
     - Implement CompleteAccess
-    - Output hexadecimal values in xml command.
     - Implement --output-file argument in foe_read.
     - Fix arguments of reg_read.
     - Number layout for reg_read.
diff --git a/tool/CommandXml.cpp b/tool/CommandXml.cpp
index baf42a3d..28576a85 100644
--- a/tool/CommandXml.cpp
+++ b/tool/CommandXml.cpp
@@ -143,9 +143,9 @@ void CommandXml::generateSlaveXml(
 
         cout
             << in << "        <Sm Enable=\"" << dec << (unsigned int) sync.enable
-            << "\" StartAddress=\"" << sync.physical_start_address
-            << "\" ControlByte=\"" << (unsigned int) sync.control_register
-            << "\" DefaultSize=\"" << sync.default_size
+            << "\" StartAddress=\"#x" << hex << sync.physical_start_address
+            << "\" ControlByte=\"#x" << hex << (unsigned int) sync.control_register
+            << "\" DefaultSize=\"" << dec << sync.default_size
             << "\" />" << endl;
     }