diff --git a/bin/osv/fields.py b/bin/osv/fields.py
index dbcc30822b7..4ae70fd33e7 100644
--- a/bin/osv/fields.py
+++ b/bin/osv/fields.py
@@ -525,14 +525,14 @@ class property(function):
 		return res
 
 	def _field_get(self, self2, cr, uid, prop):
-		if not self.field_id:
+		if not self.field_id.get(cr.dbname):
 			cr.execute('select id from ir_model_fields where name=%s and model=%s', (prop, self2._name))
 			res = cr.fetchone()
-			self.field_id = res and res[0]
-		return self.field_id
+			self.field_id[cr.dbname] = res and res[0]
+		return self.field_id[cr.dbname]
 
 	def __init__(self, obj_prop, **args):
-		self.field_id = False
+		self.field_id = {}
 		function.__init__(self,
 		  self._fnct_read, False,
 		  self._fnct_write, (obj_prop, ),
diff --git a/doc/INSTALL b/doc/INSTALL
index eea1f651435..a1814d26203 100644
--- a/doc/INSTALL
+++ b/doc/INSTALL
@@ -33,6 +33,14 @@ following commands:
   apt-get install libxslt1-python2.3 python2.3-psycopg python2.3-reportlab
   apt-get install python2.3-imaging python2.3-pyparsing graphviz
 
+For newer Debian-based distributions such as Etch, the required packages can be
+installed with the following commands:
+
+  apt-get install python2.4 python-xml postgresql postgresql-client python-libxml2
+  apt-get install python-libxslt1 python-psycopg python-reportlab 
+  apt-get install python-imaging python-pyparsing graphviz
+
+
 For Fedora 
 if they are not installed, install:
 python and postgresql