diff --git a/include/interval-tree/feature_test.hpp b/include/interval-tree/feature_test.hpp
index e0a73fd..4ca3ed5 100644
--- a/include/interval-tree/feature_test.hpp
+++ b/include/interval-tree/feature_test.hpp
@@ -9,7 +9,7 @@
 
 // define LIB_INTERVAL_TREE_DEPRECATED if __attribute__((deprecated)) is not supported
 #ifndef LIB_INTERVAL_TREE_DEPRECATED
-#    if __has_cpp_attribute(depreacted)
+#    if __has_cpp_attribute(deprecated)
 #        define LIB_INTERVAL_TREE_DEPRECATED [[deprecated]]
 #    else
 #        define LIB_INTERVAL_TREE_DEPRECATED __attribute__((deprecated))