diff --git a/CMakeLists.txt b/CMakeLists.txt
index 32c6fad..b93f342 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -77,6 +77,12 @@
     '/redfish/v1/Systems/system/'."
     OFF
 )
+option (
+    BMCWEB_ENABLE_MUTUAL_TLS_AUTHENTICATION
+    "Enables authenticating users through TLS client certificates.
+    The BMCWEB_INSECURE_DISABLE_SSL must be OFF for this option to take effect."
+    OFF
+)
 
 # Insecure options.  Every option that starts with a BMCWEB_INSECURE flag should
 # not be enabled by default for any platform, unless the author fully
@@ -108,6 +114,14 @@
     OFF
 )
 
+
+
+if (BMCWEB_ENABLE_MUTUAL_TLS_AUTHENTICATION AND BMCWEB_INSECURE_DISABLE_SSL)
+    message("SSL Must be enabled to allow SSL authentication")
+    set(BMCWEB_ENABLE_MUTUAL_TLS_AUTHENTICATION OFF)
+endif()
+
+
 include (CTest)
 
 set (CMAKE_CXX_STANDARD 17)
@@ -344,6 +358,7 @@
 
 target_compile_definitions (
     bmcweb PRIVATE $<$<BOOL:${BMCWEB_ENABLE_KVM}>: -DBMCWEB_ENABLE_KVM>
+    $<$<BOOL:${BMCWEB_ENABLE_MUTUAL_TLS_AUTHENTICATION}>: -DBMCWEB_ENABLE_MUTUAL_TLS_AUTHENTICATION>
     $<$<BOOL:${BMCWEB_ENABLE_VM_WEBSOCKET}>: -DBMCWEB_ENABLE_VM_WEBSOCKET>
     $<$<BOOL:${BMCWEB_ENABLE_DBUS_REST}>: -DBMCWEB_ENABLE_DBUS_REST>
     $<$<BOOL:${BMCWEB_ENABLE_REDFISH}>: -DBMCWEB_ENABLE_REDFISH>