diff --git a/CMakeLists.txt b/CMakeLists.txt
index f361270..e84f1f5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -58,7 +58,7 @@
       add_definitions( -Werror )
    endif ()
    if (optimize) 
-p      add_definitions( -Os )
+      add_definitions( -Os )
    endif ()
 elseif (MSVC)
    add_definitions ( /W4 )