diff --git a/Makefile b/Makefile
index f5d75e5..6272d74 100644
--- a/Makefile
+++ b/Makefile
@@ -10,8 +10,8 @@ $(BUNDLE): manifest.ttl drmr.ttl drmr.so drmr_ui.so knob.png
 drmr.so: drmr.c drmr_hydrogen.c
 	$(CC) -shared -Wall -fPIC -DPIC drmr.c drmr_hydrogen.c `pkg-config --cflags --libs lv2-plugin sndfile samplerate` -lexpat -lm -o drmr.so
 
-drmr_ui.so: drmr_ui.c drmr_hydrogen.c
-	$(CC) -shared -Wall -fPIC -DPIC drmr_ui.c drmr_hydrogen.c `pkg-config --cflags --libs lv2-plugin gtk+-2.0 sndfile samplerate` -lexpat -lm -o drmr_ui.so
+drmr_ui.so: drmr_ui.c drmr_hydrogen.c nknob.c
+	$(CC)  -DINSTALL_DIR=\"$(INSTALL_DIR)\" -shared -Wall -fPIC -DPIC drmr_ui.c drmr_hydrogen.c nknob.c `pkg-config --cflags --libs lv2-plugin gtk+-2.0 sndfile samplerate` -lexpat -lm -o drmr_ui.so
 
 htest: drmr_hydrogen.c
 	$(CC) -D_TEST_HYDROGEN_PARSER -Wall -fPIC -DPIC drmr_hydrogen.c `pkg-config --cflags --libs sndfile samplerate` -lexpat -lm -o htest
diff --git a/drmr_ui.c b/drmr_ui.c
index 635a482..e7fda89 100644
--- a/drmr_ui.c
+++ b/drmr_ui.c
@@ -125,10 +125,10 @@ static void fill_sample_table(DrMrUi* ui, int samples, char** names,GtkWidget**
     pan_label = gtk_label_new("Pan");
     pan_vbox = gtk_vbox_new(false,0);
     
-    gtk_box_pack_start(GTK_BOX(gain_vbox),gain_slider,true,true,0);
+    gtk_box_pack_start(GTK_BOX(gain_vbox),gain_slider,false,false,0);
     gtk_box_pack_start(GTK_BOX(gain_vbox),gain_label,false,false,0);
 
-    gtk_box_pack_start(GTK_BOX(pan_vbox),pan_slider,true,true,0);
+    gtk_box_pack_start(GTK_BOX(pan_vbox),pan_slider,false,false,0);
     gtk_box_pack_start(GTK_BOX(pan_vbox),pan_label,false,false,0);
 
     gtk_box_pack_start(GTK_BOX(hbox),gain_vbox,true,true,0);