diff --git a/ext/ladspa/Makefile.am b/ext/ladspa/Makefile.am
index 00582ed7c6..23c84f57bb 100644
--- a/ext/ladspa/Makefile.am
+++ b/ext/ladspa/Makefile.am
@@ -1,8 +1,14 @@
 plugin_LTLIBRARIES = libgstladspa.la
 
 libgstladspa_la_SOURCES = gstladspa.c
-libgstladspa_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_CFLAGS) $(LRDF_CFLAGS)
-libgstladspa_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) -lgstaudio-$(GST_MAJORMINOR) $(LIBM) $(LRDF_LIBS) ../../gst-libs/gst/signalprocessor/libgstsignalprocessor.la
+libgstladspa_la_CFLAGS = \
+	-I$(top_builddir)/gst-libs \
+	$(GST_PLUGINS_BASE_CFLAGS) \
+	$(GST_CONTROLLER_CFLAGS) $(GST_CFLAGS) $(LRDF_CFLAGS)
+libgstladspa_la_LIBADD = \
+	$(top_builddir)/gst-libs/gst/signalprocessor/libgstsignalprocessor.la \
+	$(GST_PLUGINS_BASE_LIBS) -lgstaudio-$(GST_MAJORMINOR) \
+	$(LIBM) $(LRDF_LIBS)
 libgstladspa_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 libgstladspa_la_LIBTOOLFLAGS = --tag=disable-static
 
diff --git a/ext/ladspa/gstladspa.h b/ext/ladspa/gstladspa.h
index f51d623358..14532318ee 100644
--- a/ext/ladspa/gstladspa.h
+++ b/ext/ladspa/gstladspa.h
@@ -28,7 +28,7 @@
 
 #include <gst/gst.h>
 
-#include "../../gst-libs/gst/signalprocessor/gstsignalprocessor.h"
+#include <gst/signalprocessor/gstsignalprocessor.h>
 
 
 G_BEGIN_DECLS
diff --git a/ext/lv2/Makefile.am b/ext/lv2/Makefile.am
index f10c7acff7..18fe648113 100644
--- a/ext/lv2/Makefile.am
+++ b/ext/lv2/Makefile.am
@@ -1,8 +1,14 @@
 plugin_LTLIBRARIES = libgstlv2.la
 
 libgstlv2_la_SOURCES = gstlv2.c
-libgstlv2_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CONTROLLER_CFLAGS) $(GST_CFLAGS) $(SLV2_CFLAGS)
-libgstlv2_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) -lgstaudio-$(GST_MAJORMINOR) $(LIBM) $(SLV2_LIBS) ../../gst-libs/gst/signalprocessor/libgstsignalprocessor.la
+libgstlv2_la_CFLAGS = \
+	-I$(top_builddir)/gst-libs \
+	$(GST_PLUGINS_BASE_CFLAGS) \ 
+	$(GST_CONTROLLER_CFLAGS) $(GST_CFLAGS) $(SLV2_CFLAGS)
+libgstlv2_la_LIBADD = \
+	$(top_builddir)/gst-libs/gst/signalprocessor/libgstsignalprocessor.la \
+	$(GST_PLUGINS_BASE_LIBS) -lgstaudio-$(GST_MAJORMINOR) \
+	$(LIBM) $(SLV2_LIBS)
 libgstlv2_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 libgstlv2_la_LIBTOOLFLAGS = --tag=disable-static
 
diff --git a/ext/lv2/gstlv2.h b/ext/lv2/gstlv2.h
index f76235b45d..389c03d18f 100644
--- a/ext/lv2/gstlv2.h
+++ b/ext/lv2/gstlv2.h
@@ -28,7 +28,7 @@
 
 #include <gst/gst.h>
 
-#include "../../gst-libs/gst/signalprocessor/gstsignalprocessor.h"
+#include <gst/signalprocessor/gstsignalprocessor.h>
 
 
 G_BEGIN_DECLS