diff --git a/xo-ratio/example/ex1/CMakeLists.txt b/xo-ratio/example/ex1/CMakeLists.txt
index abe9347c..db66601f 100644
--- a/xo-ratio/example/ex1/CMakeLists.txt
+++ b/xo-ratio/example/ex1/CMakeLists.txt
@@ -7,6 +7,7 @@ if (XO_ENABLE_EXAMPLES)
     add_executable(${SELF_EXE} ${SELF_SRCS})
     xo_include_options2(${SELF_EXE})
     xo_self_dependency(${SELF_EXE} xo_ratio)
+    xo_self_dependency(${SELF_EXE} indentlog)
 endif()
 
 # end CMakeLists.txt