diff --git a/simgear/Makefile.am b/simgear/Makefile.am
index 9bdce9d4..6cddb530 100644
--- a/simgear/Makefile.am
+++ b/simgear/Makefile.am
@@ -32,15 +32,15 @@ include_HEADERS = \
 
 SUBDIRS = \
 	$(ZLIB_DIRS) \
-	bucket \
+	xml \
 	debug \
+	misc \
+	bucket \
 	ephemeris \
+	io \
 	magvar \
 	math \
 	$(METAR_DIRS) \
-	xml \
-	misc \
-	io \
 	route \
 	screen \
 	$(SERIAL_DIRS) \
diff --git a/simgear/io/Makefile.am b/simgear/io/Makefile.am
index d566f9fa..0f84bf1b 100644
--- a/simgear/io/Makefile.am
+++ b/simgear/io/Makefile.am
@@ -25,8 +25,11 @@ noinst_PROGRAMS = decode_binobj socktest lowtest
 socktest_SOURCES = socktest.cxx
 
 socktest_LDADD = \
-	$(top_builddir)/simgear/io/libsgio.a \
-	$(top_builddir)/simgear/debug/libsgdebug.a
+	$(top_builddir)/simgear/bucket/libsgbucket.a \
+        $(top_builddir)/simgear/io/libsgio.a \
+	$(top_builddir)/simgear/debug/libsgdebug.a \
+	$(top_builddir)/simgear/misc/libsgmisc.a \
+	-lz
 
 lowtest_SOURCES = lowtest.cxx
 
diff --git a/simgear/route/Makefile.am b/simgear/route/Makefile.am
index b3510070..cfc1b0bf 100644
--- a/simgear/route/Makefile.am
+++ b/simgear/route/Makefile.am
@@ -17,7 +17,9 @@ waytest_SOURCES = waytest.cxx
 waytest_LDADD = \
 	$(top_builddir)/simgear/route/libsgroute.a \
 	$(top_builddir)/simgear/math/libsgmath.a \
-	$(top_builddir)/simgear/debug/libsgdebug.a
+	$(top_builddir)/simgear/debug/libsgdebug.a \
+	$(top_builddir)/simgear/misc/libsgmisc.a \
+	-lz
 
 routetest_SOURCES = routetest.cxx