diff --git a/build.sh b/build.sh
index 5222ab5c..561a7efc 100644
--- a/build.sh
+++ b/build.sh
@@ -235,14 +235,14 @@ if [[ "X$ENABLE_GE_UT" = "Xon" || "X$ENABLE_GE_COV" = "Xon" ]]; then
 #     fi
 
 #     if [[ "X$ENABLE_GE_COV" = "Xon" ]]; then
-         echo "Generating coverage statistics, please wait..."
-         cd ${BASEPATH}
-         rm -rf ${BASEPATH}/cov
-         mkdir ${BASEPATH}/cov
-         lcov -c -d build/tests/ut/ge -d build/tests/ut/common/graph/ -o cov/tmp.info
-	 lcov --remove cov/tmp.info '*/output/*' '*/build/opensrc/*' '*/build/proto/*' '*/third_party/*' '*/tests/*' '/usr/local/*' -o cov/coverage.info
-	 cd ${BASEPATH}/cov
-	 genhtml coverage.info
+        echo "Generating coverage statistics, please wait..."
+        cd ${BASEPATH}
+        rm -rf ${BASEPATH}/cov
+        mkdir ${BASEPATH}/cov
+        lcov -c -d build/tests/ut/ge -d build/tests/ut/common/graph/ -o cov/tmp.info
+        lcov --remove cov/tmp.info '*/output/*' '*/build/opensrc/*' '*/build/proto/*' '*/third_party/*' '*/tests/*' '/usr/local/*' '*/model_manager/*' -o cov/coverage.info
+        cd ${BASEPATH}/cov
+        genhtml coverage.info
 fi
 
 # generate output package in tar form, including ut/st libraries/executables