diff --git a/src/build_models/Makefile b/src/build_models/Makefile
--- a/src/build_models/Makefile
+++ b/src/build_models/Makefile
@@ -1,7 +1,5 @@
 # $Id$
 
-QMAKE = $(HOME)/Trolltech/Qt-4.4.1/bin/qmake
-
 # Set an environment varible $(MAKE) to the name of the make command
 # on your machine, e.g. 'make' on UNIX and 'mingw32-make' on windows.
 # Fallback default is UNIX make.
@@ -10,6 +8,11 @@ ifeq ($(MAKE),)
 	MAKE=make
 endif
 
+# Ditto for QMAKE
+ifeq ($(QMAKE),)
+	QMAKE=qmake
+endif
+
 all: plugin_auxingrowth plugin_meinhardt plugin_test
 
 plugin_auxingrowth: Makefile.plugin_auxingrowth