diff --git a/CMakeLists.txt b/CMakeLists.txt
index 36a33063..bb4282c8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,6 +9,13 @@ ecbuild_add_executable (
 # To fix this, we explicitly set the linker language to Fortran.
 set_target_properties (GEOSgcm.x PROPERTIES LINKER_LANGUAGE Fortran)
 
+# Using JeMalloc will be optional, default OFF
+option (USE_JEMALLOC "Use JeMalloc" OFF)
+if (USE_JEMALLOC)
+  find_package (JeMalloc REQUIRED)
+  target_link_libraries (GEOSgcm.x JeMalloc::JeMalloc)
+endif ()
+
 ecbuild_add_executable (
   TARGET idfupd.x
   SOURCES idfupd.F90