diff --git a/examples/generic_switch/main/app_main.cpp b/examples/generic_switch/main/app_main.cpp
index 01fb39225..10aa78de7 100644
--- a/examples/generic_switch/main/app_main.cpp
+++ b/examples/generic_switch/main/app_main.cpp
@@ -42,7 +42,7 @@ extern const char insights_auth_key_end[] asm("_binary_insights_auth_key_txt_end
 
 namespace {
 // Please refer to https://github.com/CHIP-Specifications/connectedhomeip-spec/blob/master/src/namespaces
-constexpr const uint8_t kNamespaceSwitches = 43;
+constexpr const uint8_t kNamespaceSwitches = 0x43;
 // Common Number Namespace: 7, tag 0 (Zero)
 constexpr const uint8_t kTagSwitchOn = 0;
 // Common Number Namespace: 7, tag 1 (One)