diff --git a/.github/workflows/action.yml b/.github/workflows/action.yml
index 375410f8c3..5790fa2029 100644
--- a/.github/workflows/action.yml
+++ b/.github/workflows/action.yml
@@ -47,7 +47,7 @@ jobs:
          - {RTT_BSP: "lm3s9b9x", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "lm4f232", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "tm4c123bsp", RTT_TOOL_CHAIN: "sourcery-arm"}
-         - {RTT_BSP: "tkm32f499", RTT_TOOL_CHAIN: "sourcery-arm"}
+         - {RTT_BSP: "tkm32F499", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "tm4c129x", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "lpc43xx/M4", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "lpc176x", RTT_TOOL_CHAIN: "sourcery-arm"}