diff --git a/debian-build.cabal b/debian-build.cabal
--- a/debian-build.cabal
+++ b/debian-build.cabal
@@ -1,5 +1,5 @@
 name:                debian-build
-version:             0.7.2.0
+version:             0.7.2.1
 synopsis:            Debian package build sequence tools
 description:         This package provides build sequence functions
                      for debian package, and includes on-the-fly
diff --git a/mains/odebuild.hs b/mains/odebuild.hs
--- a/mains/odebuild.hs
+++ b/mains/odebuild.hs
@@ -1,9 +1,9 @@
 import Control.Monad (void, when, (>=>))
+import Data.Maybe (listToMaybe)
 import System.Environment (getProgName, getArgs)
 import System.Console.GetOpt
   (OptDescr (Option), ArgDescr (ReqArg, NoArg), ArgOrder (RequireOrder),
    usageInfo, getOpt)
-import Text.Read (readMaybe)
 
 import Debian.Package.Data (Source, Hackage, isBinaryPackage)
 import qualified Debian.Package.Build.Command as Command
@@ -50,7 +50,7 @@
     "install build depends before running build"
   , Option [] ["mode"]
     (ReqArg (\s opts -> maybe (Left $ "Unknown build mode: " ++ s) Right $ do
-                m <- readMaybe s
+                m <- listToMaybe [m | (m, "") <- reads s]
                 return $ opts { buildModes = buildModes opts . (m : ) } )
      "BUILD_MODE")
     "add build-mode to build-mode list to specify"