Index: Makefile
===================================================================
--- Makefile	(revision 1247)
+++ Makefile	(working copy)
@@ -422,10 +422,10 @@
 
 firmware:
 ifeq ($(HOTPLUG_FIRMWARE),yes)
-	if [ -d /usr/lib/hotplug/firmware ]; then \
-		install -m 644 *.ima /usr/lib/hotplug/firmware; \
-	elif [ -d /lib/firmware ]; then \
-		install -m 644 *.ima /lib/firmware; \
+	if [ -d $(INSTALL_PREFIX)/usr/lib/hotplug/firmware ]; then \
+		install -m 644 *.ima $(INSTALL_PREFIX)/usr/lib/hotplug/firmware; \
+	elif [ -d $(INSTALL_PREFIX)/lib/firmware ]; then \
+		install -m 644 *.ima $(INSTALL_PREFIX)/lib/firmware; \
 	fi
 	@echo "Installed firmware"
 else