diff --git a/circle.yml b/circle.yml
index ee1fce8ad4..30b12feada 100644
--- a/circle.yml
+++ b/circle.yml
@@ -16,7 +16,7 @@ machine:
         wget "https://raw.githubusercontent.com/boostorg/release-tools/develop/ci_boost_library_check.py" -P ${HOME}
         wget "https://raw.githubusercontent.com/boostorg/release-tools/develop/ci_boost_release.py" -P ${HOME}
         wget "https://raw.githubusercontent.com/boostorg/release-tools/develop/ci_boost_status.py" -P ${HOME}
-        echo '#!/bin/sh' > ${HOME}/script.sh
+        echo '#!/bin/bash' > ${HOME}/script.sh
         echo 'export SCRIPT_N=(${SCRIPT_N})' >> "${HOME}/script.sh"
         echo 'export SCRIPT=${SCRIPT_N[$CIRCLE_NODE_INDEX]}' >> "${HOME}/script.sh"
         echo 'export EOL_N=(${EOL_N})' >> "${HOME}/script.sh"