diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index e5dc5b194d..d84761de42 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -256,9 +256,9 @@ if(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
   endif()
 endif()
 
-set(ENABLE_SANITIZER "none" CACHE STRING "Select a code sanitizer option (none (default), address, thread, undefined)")
+set(ENABLE_SANITIZER "none" CACHE STRING "Select a code sanitizer option (none (default), address, leak, thread, undefined)")
 mark_as_advanced(ENABLE_SANITIZER)
-set(ENABLE_SANITIZER_VALUES none address thread undefined)
+set(ENABLE_SANITIZER_VALUES none address leak thread undefined)
 set_property(CACHE ENABLE_SANITIZER PROPERTY STRINGS ${ENABLE_SANITIZER_VALUES})
 validate_option(ENABLE_SANITIZER ENABLE_SANITIZER_VALUES)
 string(TOLOWER ${ENABLE_SANITIZER} ENABLE_SANITIZER)
diff --git a/doc/src/Build_development.rst b/doc/src/Build_development.rst
index deb9d5b3cb..f86084acb5 100644
--- a/doc/src/Build_development.rst
+++ b/doc/src/Build_development.rst
@@ -52,6 +52,7 @@ compilation and linking stages.  This is done through setting the
 
    -D ENABLE_SANITIZER=none       # no sanitizer active (default)
    -D ENABLE_SANITIZER=address    # enable address sanitizer / memory leak checker
+   -D ENABLE_SANITIZER=leak       # enable memory leak checker (only)
    -D ENABLE_SANITIZER=undefined  # enable undefined behavior sanitizer
    -D ENABLE_SANITIZER=thread     # enable thread sanitizer