diff --git a/utils/common/deploy-rbutil.py b/utils/common/deploy-rbutil.py
index dea9f32..a94dfda 100755
--- a/utils/common/deploy-rbutil.py
+++ b/utils/common/deploy-rbutil.py
@@ -52,6 +52,9 @@
     "darwin"   : "RockboxUtility.app",
     "linux2"   : "RockboxUtility"
 }
+deploy.regreplace = {
+        "rbutil/rbutilqt/version.h" : ["SVN \$.*\$", "SVN $Revision: %REVISION% $"]
+}
 # OS X 10.6 defaults to gcc 4.2. Building universal binaries that are
 # compatible with 10.4 requires using gcc-4.0.
 deploy.qmakespec = {
@@ -72,4 +75,3 @@
 deploy.nsisscript = ""
 
 deploy.deploy()
-
diff --git a/utils/common/deploy-themeeditor.py b/utils/common/deploy-themeeditor.py
index 4569052..8b66e5a 100755
--- a/utils/common/deploy-themeeditor.py
+++ b/utils/common/deploy-themeeditor.py
@@ -35,6 +35,7 @@
     "darwin"   : "rbthemeeditor.app",
     "linux2"   : "rbthemeeditor"
 }
+deploy.regreplace = {}
 # OS X 10.6 defaults to gcc 4.2. Building universal binaries that are
 # compatible with 10.4 requires using gcc-4.0.
 deploy.qmakespec = {
diff --git a/utils/common/deploy.py b/utils/common/deploy.py
index 44635c8..1e48f8a 100755
--- a/utils/common/deploy.py
+++ b/utils/common/deploy.py
@@ -563,6 +563,22 @@
             tempclean(workfolder, cleanup and not keeptemp)
             sys.exit(1)
 
+        # replace version strings. Only done when building from trunk
+        if tag == "":
+            print "Updating version information in sources"
+            for f in regreplace:
+                infile = open(sourcefolder + "/" + f, "r")
+                incontents = infile.readlines()
+                infile.close()
+
+                outfile = open(sourcefolder + "/" + f, "w")
+                for line in incontents:
+                    # replacements made on the replacement string:
+                    # %REVISION% is replaced with the revision number
+                    replacement = re.sub("%REVISION%", str(trunk), regreplace[f][1])
+                    outfile.write(re.sub(regreplace[f][0], replacement, line))
+                outfile.close()
+
         if source == True:
             tf = tarfile.open(archivename, mode='w:bz2')
             tf.add(sourcefolder, os.path.basename(re.subn('/$', '', sourcefolder)[0]))