diff --git a/Makefile.in b/Makefile.in
index 4c9435ccf..a413daaca 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -554,7 +554,6 @@ all: startup
 	@INSTALL_DLLS@ (cd library/random; make)
 	@INSTALL_DLLS@ (cd library/regex; make)
 	@INSTALL_DLLS@ (cd library/system; make)
-	@INSTALL_DLLS@ (cd library/yap2swi; make)
 	@INSTALL_DLLS@ (cd library/tries; make)
 	@INSTALL_DLLS@ (cd library/lammpi; make)
 	@INSTALL_DLLS@ (cd library/matrix; make)
@@ -592,7 +591,6 @@ install_unix: startup libYap.a
 	@INSTALL_DLLS@ (cd library/random; make install)
 	@INSTALL_DLLS@ (cd library/regex; make install)
 	@INSTALL_DLLS@ (cd library/system; make install)
-	@INSTALL_DLLS@ (cd library/yap2swi; make install)
 	@INSTALL_DLLS@ (cd library/tries; make install)
 	@INSTALL_DLLS@ (cd library/lammpi; make install)
 	@INSTALL_DLLS@ (cd library/matrix; make install)
@@ -620,7 +618,6 @@ install_win32: startup
 	(cd library/matrix; make install)
 	(cd library/regex; make install)
 	(cd library/system; make install)
-	(cd library/yap2swi; make install)
 	@INSTALL_MATLAB@ (cd library/matlab; make install)
 	(cd library/tries; make install)
 
@@ -660,7 +657,6 @@ clean: clean_docs
 	@INSTALL_DLLS@ (cd library/random; make clean)
 	@INSTALL_DLLS@ (cd library/regex; make clean)
 	@INSTALL_DLLS@ (cd library/system; make clean)
-	@INSTALL_DLLS@ (cd library/yap2swi; make clean)
 	@INSTALL_DLLS@ (cd library/tries; make clean)
 	@INSTALL_DLLS@ (cd library/lammpi; make clean)
 	@INSTALL_MATLAB@ (cd library/matlab; make clean)