diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0354553..95b8663 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,7 @@ if(NOT CMAKE_BUILD_TYPE)
 	set(CMAKE_BUILD_TYPE debug)
 endif()
 
-set(CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELAESE} -O2")
+set(CMAKE_C_FLAGS_RELEASE   "${CMAKE_C_FLAGS_RELEASE} -O2")
 
 # Include file check macros honor CMAKE_REQUIRED_LIBRARIES
 # i.e. the check_include_file() calls will include -lm when checking.