diff --git a/packages/Dialect.defs.in b/packages/Dialect.defs.in
index 6b1dd2c07..cdd7ccc3c 100644
--- a/packages/Dialect.defs.in
+++ b/packages/Dialect.defs.in
@@ -25,6 +25,7 @@ PLLIBDIR=$(PLBASE)/share/Yap
 SOLIBDIR=$(PLBASE)/lib/Yap
 PKGDOCDIR=$(PLBASE)/share/doc/packages
 PKGEXDIR=$(PLBASE)/share/doc/packages/examples
+PKGCFLAGS=
 
 #
 # YAP internal stuff
@@ -40,7 +41,7 @@ PL=@INSTALL_ENV@ $(DESTDIR)$(BINDIR)/yap $(DESTDIR)$(YAPLIBDIR)/startup.yss
 
 CC=@CC@
 LD=@SHLIB_LD@
-SO=@SOT@
+SO=@SO@
 COFLAGS=$(YAP_EXTRAS) $(DEFS) -D_YAP_NOT_INSTALLED_=1 -I$(srcdir) -I../.. -I$(srcdir)/../../include -I$(srcdir)/../../os @CPPFLAGS@
 CWFLAGS=
 CMFLAGS=@SHLIB_CFLAGS@