diff --git a/src/coverage_PoliceJson.sh b/src/coverage_PoliceJson.sh
index 4436825..4eab335 100644
--- a/src/coverage_PoliceJson.sh
+++ b/src/coverage_PoliceJson.sh
@@ -6,7 +6,7 @@
 curl --user yuu:yuu8844 -O http://localhost:8080/job/hayashiLib/lastSuccessfulBuild/artifact/dist/hayashi.jar
 curl --user yuu:yuu8844 -O http://localhost:8080/job/osmCoverage/lastSuccessfulBuild/artifact/osmCoverage.jar
 
-mkdir GML_POLICE
+mkdir -p GML_POLICE
 java -cp .:osmCoverage.jar:hayashi.jar:hsqldb_2.2.9.jar:postgresql-9.4.1212.jar osm.jp.coverage.police.ToGeoJSON
 
 ls -l
@@ -39,4 +39,3 @@
 
 git remote -v
 #git push gitbucket HEAD:master
-