diff --git a/make/windows/makefiles/sa.make b/make/windows/makefiles/sa.make
index d75e2aa20378d07f34949d1d48004f66e211b4c5..84a34a71246fa348d061a5c7db0e4edffd9a2980 100644
--- a/make/windows/makefiles/sa.make
+++ b/make/windows/makefiles/sa.make
@@ -44,9 +44,11 @@ HS_COMMON_SRC_REL = src
 HS_ALT_SRC_REL=src/closed
 HS_ALT_SRC = $(WorkSpace)/$(HS_ALT_SRC_REL)
 !ifndef HS_ALT_MAKE
+!if exist($(WorkSpace)/make/closed)
 HS_ALT_MAKE=$(WorkSpace)/make/closed
 !endif
 !endif
+!endif
 
 HS_COMMON_SRC = $(WorkSpace)/$(HS_COMMON_SRC_REL)