diff --git a/scheme/cyclone/cps-opt-memoize-pure-fncs.scm b/scheme/cyclone/cps-opt-memoize-pure-fncs.scm
index c0e35bc2..47319f4c 100644
--- a/scheme/cyclone/cps-opt-memoize-pure-fncs.scm
+++ b/scheme/cyclone/cps-opt-memoize-pure-fncs.scm
@@ -113,7 +113,7 @@
 )
 
 ;; Transformation to memoize simple recursive numeric functions
-(define (opt:memoize-pure-fncs sexp)
+(define (opt:memoize-pure-fncs sexp module-globals)
   (define memo-tbl '())
 
   ;; exp - S-expression to scan
@@ -321,12 +321,13 @@
 
 ))
 
-(let ((ast (ast:sexp->ast sexp)))
+(let ((ast (ast:sexp->ast sexp))
+      (module-globals (list)))
   (analyze-cps ast)
   ;(analyze:find-recursive-calls ast)
   (pretty-print
     (ast:ast->pp-sexp
-      (opt:memoize-pure-fncs ast))))
+      (opt:memoize-pure-fncs ast module-globals))))
 
 ;;    (pretty-print
 ;;      (ast:ast->pp-sexp
diff --git a/scheme/cyclone/cps-optimizations.sld b/scheme/cyclone/cps-optimizations.sld
index 1e20c0a7..b2632534 100644
--- a/scheme/cyclone/cps-optimizations.sld
+++ b/scheme/cyclone/cps-optimizations.sld
@@ -1700,7 +1700,7 @@
     ;; TODO: re-run phases again until program is stable (less than n opts made, more than r rounds performed, etc)
     ;; END notes
 
-    (define (optimize-cps ast)
+    (define (optimize-cps ast . options)
       (adb:clear!)
       (analyze-cps ast)
       (trace:info "---------------- cps analysis db:")
@@ -1715,10 +1715,12 @@
                                            ;; (program size? heuristics? what else??)
         )
 
-        ;; TODO: when memo flag (need to pass in) is enabled
-        (when #t
-          (set! new-ast (opt:memoize-pure-fncs new-ast)))
-
+        ;; Memoize pure functions, if instructed
+        (let ((module-globals (assoc 'module-globals options)))
+          (when (and module-globals #t ;; TODO: (assoc 'memoize-pure-functions options)
+                )
+            (set! new-ast (opt:memoize-pure-fncs new-ast module-globals)))
+        )
         new-ast
       )
     )