diff --git a/ghc/driver/Makefile b/ghc/driver/Makefile
index 53140a848542780d991ce2a535791115db6f6f9f..f4fcab7487e4109713141d3b58c3b97edabbf508 100644
--- a/ghc/driver/Makefile
+++ b/ghc/driver/Makefile
@@ -36,7 +36,7 @@ endif
 
 SCRIPT_SUBST_VARS := \
   INSTALLING \
-  ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
+  ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel \
   CURRENT_DIR HOSTPLATFORM TARGETPLATFORM \
   GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR \
   GHC_OPT_HILEV_ASM GhcWithNativeCodeGen LeadingUnderscore\