diff --git a/src/mzscheme/src/eval.c b/src/mzscheme/src/eval.c
index 48cad1e506..2bd76928a2 100644
--- a/src/mzscheme/src/eval.c
+++ b/src/mzscheme/src/eval.c
@@ -143,8 +143,9 @@
 #ifdef MACOS_STACK_LIMIT
 #include <Memory.h>
 #endif 
-
-#include "future.h"
+#ifdef FUTURES_ENABLED
+# include "future.h"
+#endif
 
 #define EMBEDDED_DEFINES_START_ANYWHERE 0
 
diff --git a/src/mzscheme/src/jit.c b/src/mzscheme/src/jit.c
index 8812cdcfcb..18d57e3604 100644
--- a/src/mzscheme/src/jit.c
+++ b/src/mzscheme/src/jit.c
@@ -41,7 +41,9 @@
 
 #include "schpriv.h"
 #include "schmach.h"
+#ifdef FUTURES_ENABLED
 # include "future.h"
+#endif
 #ifdef MZ_USE_DWARF_LIBUNWIND
 # include "unwind/libunwind.h"
 #endif