diff --git a/tools/wrc/Makefile.in b/tools/wrc/Makefile.in
index 9f2c46ef130..1e0d9c0dca7 100644
--- a/tools/wrc/Makefile.in
+++ b/tools/wrc/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -DDINCLUDEDIR="\"$(includedir)\""
+DEFS      = -DINCLUDEDIR="\"$(includedir)\""
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ../..
 SRCDIR    = @srcdir@