diff --git a/script/otbr-setup.bash b/script/otbr-setup.bash
index 47487497..97aef369 100644
--- a/script/otbr-setup.bash
+++ b/script/otbr-setup.bash
@@ -102,7 +102,7 @@ if [ "${REFERENCE_RELEASE_TYPE?}" = "1.2" ]; then
                 'BORDER_ROUTING=0'
                 'NAT64=0'
                 'DNS64=0'
-                "OTBR_OPTIONS=\"${OTBR_THREAD_1_2_OPTIONS[@]} ${OTBR_COMMON_OPTIONS[@]} -DOT_RCP_RESTORATION_MAX_COUNT=100\" -DCMAKE_CXX_FLAGS='-DOPENTHREAD_CONFIG_MAC_CSL_REQUEST_AHEAD_US=5000'"
+                "OTBR_OPTIONS=\"${OTBR_THREAD_1_2_OPTIONS[@]} ${OTBR_COMMON_OPTIONS[@]} -DOT_RCP_RESTORATION_MAX_COUNT=100 -DCMAKE_CXX_FLAGS='-DOPENTHREAD_CONFIG_MAC_CSL_REQUEST_AHEAD_US=5000'\""
             )
             build_options+=("${LOCAL_OPTIONS[@]}")
             ;;
@@ -123,7 +123,7 @@ elif [ "${REFERENCE_RELEASE_TYPE?}" = "1.3" ]; then
                 'BORDER_ROUTING=1'
                 'NAT64=0'
                 'DNS64=0'
-                "OTBR_OPTIONS=\"${OTBR_THREAD_1_3_OPTIONS[@]} ${OTBR_THREAD_1_3_COMMON_OPTIONS[@]} -DOT_RCP_RESTORATION_MAX_COUNT=100\" -DCMAKE_CXX_FLAGS='-DOPENTHREAD_CONFIG_MAC_CSL_REQUEST_AHEAD_US=5000'"
+                "OTBR_OPTIONS=\"${OTBR_THREAD_1_3_OPTIONS[@]} ${OTBR_THREAD_1_3_COMMON_OPTIONS[@]} -DOT_RCP_RESTORATION_MAX_COUNT=100 -DCMAKE_CXX_FLAGS='-DOPENTHREAD_CONFIG_MAC_CSL_REQUEST_AHEAD_US=5000'\""
             )
             build_options+=("${LOCAL_OPTIONS[@]}")
             ;;