diff --git a/packages/Dialect.defs.in b/packages/Dialect.defs.in
index ff33cbc6b..54756b59e 100755
--- a/packages/Dialect.defs.in
+++ b/packages/Dialect.defs.in
@@ -38,7 +38,7 @@ YAPLIBDIR=@libdir@/Yap
 SHAREDIR=$(ROOTDIR)/share/Yap
 abs_top_builddir=@abs_top_builddir@
 abs_top_srcdir=@abs_top_srcdir@
-PL=@PRE_INSTALL_ENV@  YAPSHAREDIR=$(abs_top_srcdir)/library:$(abs_top_srcdir)/swi/library:$(abs_top_srcdir)/packages/clib $(abs_top_builddir)/yap $(abs_top_builddir)/startup.yss
+PL=@PRE_INSTALL_ENV@  YAPSHAREDIR=$(abs_top_srcdir)/library:$(abs_top_srcdir)/swi/library:$(abs_top_srcdir)/packages/clib $(abs_top_builddir)/yap@EXEC_SUFFIX@ $(abs_top_builddir)/startup.yss
 
 CC=@CC@
 LD=@SHLIB_LD@