diff --git a/build.py b/build.py
index 96eaa4f2f70..7b54dd203a9 100755
--- a/build.py
+++ b/build.py
@@ -110,13 +110,13 @@ def choose_omero_version():
     ant. Returned as an array so that an empty value can
     be extended into the build command.
 
-    If OMERO_BULID is set, then "-Domero.version=${omero-version}-${OMERO_BUILD}"
+    If BUILD_NUMER is set, then "-Domero.version=${omero.version}-b${BUILD_NUMBER}"
     otherwise nothing.
     """
 
-    omero_build = os.environ.get("OMERO_BUILD", "")
+    omero_build = os.environ.get("BUILD_NUMBER", "")
     if omero_build:
-        omero_build = "-%s" % omero_build
+        omero_build = "-b%s" % omero_build
 
     command = [ find_java(), "omero","-q","version" ]
     err = ""
@@ -135,7 +135,7 @@ def choose_omero_version():
                     "-DEV", omero_version)
         return [ "-Domero.version=%s%s" % (omero_version, omero_build) ]
     except:
-        print "Error getting version for OMERO_BUILD=%s" % omero_build
+        print "Error getting version for BUILD_NUMBER=%s" % omero_build
         if err:
             print err
         sys.exit(1)
diff --git a/docs/hudson/OMERO-cpp-dll.bat b/docs/hudson/OMERO-cpp-dll.bat
index 35b8e9612fe..878f808cbac 100644
--- a/docs/hudson/OMERO-cpp-dll.bat
+++ b/docs/hudson/OMERO-cpp-dll.bat
@@ -5,7 +5,6 @@ set ICE_CONFIG=%CD%\ice.config
 call "C:\Program Files\Microsoft Visual Studio 9.0\VC\vcvarsall.bat" x86
 if errorlevel 1 exit /b 1
 
-set OMERO_BUILD=r%SVN_REVISION%-d%BUILD_NUMBER%
 set OMERO_CONFIG=%JOB_NAME%
 set ICE_HOME=c:\Ice-3.3.1-VC90
 set CXXFLAGS=/DBOOST_TEST_SOURCE
diff --git a/docs/hudson/OMERO-cpp.bat b/docs/hudson/OMERO-cpp.bat
index 473c80a24bc..ac3de8e5c75 100644
--- a/docs/hudson/OMERO-cpp.bat
+++ b/docs/hudson/OMERO-cpp.bat
@@ -2,7 +2,6 @@
 call "C:\Program Files\Microsoft Visual Studio 9.0\VC\vcvarsall.bat" x86
 if errorlevel 1 exit /b 1
 
-set OMERO_BUILD=r%SVN_REVISION%-d%BUILD_NUMBER%
 set OMERO_CONFIG=%JOB_NAME%
 set ICE_HOME=c:\Ice-3.3.1-VC90
 set CXXFLAGS=/DBOOST_TEST_SOURCE
diff --git a/docs/hudson/OMERO-start.sh b/docs/hudson/OMERO-start.sh
index 5e3f8ff733b..6a73488e056 100644
--- a/docs/hudson/OMERO-start.sh
+++ b/docs/hudson/OMERO-start.sh
@@ -17,7 +17,6 @@ export ROUTER="$ROUTERPREFIX"4064
 export ICE_CONFIG=`pwd`/$OMERO_BRANCH.config
 export OMERO_DATA=`pwd`/target/datadir
 
-echo omero.version=$OMERO_BUILD > $ICE_CONFIG
 echo omero.user=hudson >> $ICE_CONFIG
 echo omero.pass=ome >> $ICE_CONFIG
 echo omero.host=$OMERO_HOST >> $ICE_CONFIG
diff --git a/docs/hudson/OMERO-windows-integration.bat b/docs/hudson/OMERO-windows-integration.bat
index 1e8bfcadc51..c3b0f466586 100644
--- a/docs/hudson/OMERO-windows-integration.bat
+++ b/docs/hudson/OMERO-windows-integration.bat
@@ -4,7 +4,6 @@ sc stop OMERO.hudson
 REM For fingerprinting what caused this job, we download ice.config
 wget ice.config
 
-set OMERO_BUILD=r%SVN_REVISION%_w%BUILD_NUMBER%
 set OMERO_CONFIG=%JOB_NAME%
 set ICE_HOME=c:\Ice-3.3.1-VC90
 set ICE_CONFIG=
diff --git a/docs/hudson/OMERO-windows-matlab.bat b/docs/hudson/OMERO-windows-matlab.bat
index 7a5876dc9c2..999f1ec6a9f 100644
--- a/docs/hudson/OMERO-windows-matlab.bat
+++ b/docs/hudson/OMERO-windows-matlab.bat
@@ -1,7 +1,6 @@
 set
 sc stop OMERO.hudson
 
-set OMERO_BUILD=r%SVN_REVISION%_w%BUILD_NUMBER%
 set OMERO_CONFIG=%JOB_NAME%
 set ICE_HOME=c:\Ice-3.3.1-VC90
 set ICE_CONFIG=
diff --git a/docs/hudson/OMERO.sh b/docs/hudson/OMERO.sh
index ba619b7923d..1bd3318e3ba 100644
--- a/docs/hudson/OMERO.sh
+++ b/docs/hudson/OMERO.sh
@@ -10,7 +10,6 @@ set -u
 set -x
 
 source docs/hudson/functions.sh
-export OMERO_BUILD=`git_short_rev`-b$BUILD_NUMBER
 echo Building $OMERO_BRANCH
 
 ./build.py clean
@@ -22,7 +21,7 @@ echo Building $OMERO_BRANCH
 cp -f docs/styleForAPI.css /hudson/.hudson/userContent/styleForAPI.css
 
 # Log information
-echo OMERO_BUILD=$OMERO_BUILD > target/$OMERO_BRANCH.log
+echo BUILD_NUMBER=$BUILD_NUMBER > target/$OMERO_BRANCH.log
 echo OMERO_BRANCH=$OMERO_BRANCH >> target/$OMERO_BRANCH.log
 git_info > target/GIT_INFO
 env | sort >> target/GIT_INFO
diff --git a/docs/hudson/README.txt b/docs/hudson/README.txt
index 680ff0a645e..0ebe7c8c307 100644
--- a/docs/hudson/README.txt
+++ b/docs/hudson/README.txt
@@ -36,5 +36,3 @@ products. Execution is as follows:
 
     o OMERO_PREFIX - the prefix of the ports to use
                      (e.g. 1 for 14064)
-
-    o OMERO_BUILD  - the git revision number.