diff --git a/libguile/Makefile.am b/libguile/Makefile.am
index a97db45db..8eaa24fc5 100644
--- a/libguile/Makefile.am
+++ b/libguile/Makefile.am
@@ -116,7 +116,7 @@ noinst_HEADERS = coop-threads.c coop-threads.h coop.c num2integral.i.c
 
 libguile_la_DEPENDENCIES = @LIBLOBJS@
 libguile_la_LIBADD = @LIBLOBJS@ $(LIBLTDL)
-libguile_la_LDFLAGS = -version-info @LIBGUILE_MAJOR_VERSION@:@LIBGUILE_MINOR_VERSION@:@LIBGUILE_REVISION_VERSION@ -export-dynamic
+libguile_la_LDFLAGS = -version-info @LIBGUILE_INTERFACE_CURRENT@:@LIBGUILE_INTERFACE_REVISION@:@LIBGUILE_INTERFACE_AGE@ -export-dynamic
 
 # These are headers visible as <guile/mumble.h> 
 pkginclude_HEADERS = gh.h
@@ -181,7 +181,7 @@ libpath.h: $(srcdir)/Makefile.in  $(top_builddir)/config.status
 	@echo '	{ "pkgincludedir", "$(includedir)/@PACKAGE@" }, \' \
 		>> libpath.tmp
 	@echo '	{ "guileversion", "@GUILE_VERSION@" }, \' >> libpath.tmp
-	@echo '	{ "libguileversion", "@LIBGUILE_VERSION@" }, \' >> libpath.tmp
+	@echo '	{ "libguileinterface", "@LIBGUILE_INTERFACE@" }, \' >> libpath.tmp
 	@echo '	{ "LIBS",	   "@GUILE_LIBS@" }, \' >> libpath.tmp
 	@echo '}' >> libpath.tmp
 	@mv libpath.tmp libpath.h