diff --git a/CMakeLists.txt b/CMakeLists.txt
index f28155af..e5f3c7be 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,7 +22,7 @@ if(CMAKE_COMPILER_IS_GNUCXX)
 endif()
 
 include_directories(".")
-include_directories("./test/extenal")
+include_directories("./test/external")
 
 add_subdirectory(glm)
 add_subdirectory(test)