diff --git a/CI/before_script.msvc.sh b/CI/before_script.msvc.sh
index 93d995c99..e1afdb059 100644
--- a/CI/before_script.msvc.sh
+++ b/CI/before_script.msvc.sh
@@ -849,8 +849,8 @@ fi
 			fi
 
 			# check version
-			aqt-venv/${VENV_BIN_DIR}/pip list | grep 'aqtinstall\s*1.1.3' || [[ $? -ne 0 ]]
-			if [[ $? -eq 0 ]]; then
+			aqt-venv/${VENV_BIN_DIR}/pip list | grep 'aqtinstall\s*1.1.3' || [ $? -ne 0 ]
+			if [ $? -eq 0 ]; then
 				echo "  Installing aqt wheel into virtualenv..."
 				run_cmd "aqt-venv/${VENV_BIN_DIR}/pip" install aqtinstall==1.1.3
 			fi