diff --git a/interface/CMakeLists.txt b/interface/CMakeLists.txt
index b02cc11..2d061b8 100644
--- a/interface/CMakeLists.txt
+++ b/interface/CMakeLists.txt
@@ -48,7 +48,7 @@
         $<$<BOOL:${TFM_PSA_API}>:TFM_PSA_API>
         $<$<BOOL:${CONFIG_TFM_ENABLE_CTX_MGMT}>:CONFIG_TFM_ENABLE_CTX_MGMT>
         $<$<BOOL:${TFM_ISOLATION_LEVEL}>:TFM_LVL=${TFM_ISOLATION_LEVEL}>
-        $<$<BOOL:${TFM_CONFIG_USE_TRUSTZONE}>:TFM_CONFIG_USE_TRUSTZONE>
+        $<$<BOOL:${CONFIG_TFM_USE_TRUSTZONE}>:CONFIG_TFM_USE_TRUSTZONE>
         $<$<BOOL:${TFM_MULTI_CORE_TOPOLOGY}>:TFM_MULTI_CORE_TOPOLOGY>
         $<$<BOOL:${FORWARD_PROT_MSG}>:FORWARD_PROT_MSG=${FORWARD_PROT_MSG}>
         $<$<BOOL:${CONFIG_TFM_PARTITION_META}>:CONFIG_TFM_PARTITION_META>