diff --git a/security/nss/lib/softoken/manifest.mn b/security/nss/lib/softoken/manifest.mn
index 1649cd0f102c..379481a072c6 100644
--- a/security/nss/lib/softoken/manifest.mn
+++ b/security/nss/lib/softoken/manifest.mn
@@ -40,7 +40,7 @@ LIBRARY_NAME = softokn
 LIBRARY_VERSION = 3
 MAPFILE = $(OBJDIR)/softokn.def
 
-DEFINES += -DSHLIB_SUFFIX=\"${DLL_SUFFIX}\"
+DEFINES += -DSHLIB_SUFFIX=\"$(DLL_SUFFIX)\"
 
 
 EXPORTS = \