diff --git a/examples/timit/s0/local/timit_data_prep.sh b/examples/timit/s0/local/timit_data_prep.sh
index 080fa1b942..1bc76f3d48 100755
--- a/examples/timit/s0/local/timit_data_prep.sh
+++ b/examples/timit/s0/local/timit_data_prep.sh
@@ -43,7 +43,7 @@ if [ ! -d tools/sph2pipe_${sph2pipe_version} ]; then
         gcc -o sph2pipe  *.c -lm
   cd -
 fi
-sph2pipe=`which sph2pipe` || sph2pipe=`pwd`/tools/sph2pipe_${sph2pipe_version}/sph2pipe
+sph2pipe=`which sph2pipe` || sph2pipe=`pwd`/tools/sph2pipe_${sph2pipe_version}/sph2pipe.exe
 
 if ! command -v "${sph2pipe}" &> /dev/null; then
     echo "Could not find (or execute) the sph2pipe program at $sph2pipe";
@@ -178,4 +178,4 @@ for x in train dev test; do
     fi
 done
 
-echo "Data preparation succeeded"
\ No newline at end of file
+echo "Data preparation succeeded"