diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index b103bdd..c6a8e31 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -740,6 +740,8 @@
 !endif
 !endif
 MZSCHEME_OBJ = $(OUTDIR)\if_mzsch.obj
+# increase stack size
+MZSCHEME_LIB = $(MZSCHEME_LIB) /STACK:8388608
 !endif
 
 # Perl interface