diff --git a/cadpli/Makefile.in b/cadpli/Makefile.in
index eac420b81..864d479f7 100644
--- a/cadpli/Makefile.in
+++ b/cadpli/Makefile.in
@@ -42,7 +42,7 @@ else
 INCLUDE_PATH = -I. -I.. -I$(srcdir) -I$(srcdir)/..
 endif
 
-CPPFLAGS = $(INCLUDE_PATH) @CPPFLAGS@ @DEFS@ @PICFLAG@
+CPPFLAGS = $(INCLUDE_PATH) @CPPFLAGS@ @DEFS@ -DIVL_VPI_MODULE @PICFLAG@
 CFLAGS = @WARNING_FLAGS@ @WARNING_FLAGS_CC@ @CFLAGS@
 LDFLAGS = @LDFLAGS@