diff --git a/Makefile b/Makefile
index 5e47797..9e23713 100644
--- a/Makefile
+++ b/Makefile
@@ -27,7 +27,7 @@ MKFILE_DIR := $(patsubst %/,%,$(dir $(MKFILE_PATH)))
 #   SUDO: sudo command
 #   CAM_MODELS: cmake build with -DWITH_CAM_MODELS=ON
 #
-# e.g. make [TARGET] SUOD=
+# e.g. make [TARGET] SUDO=
 # e.g. make [TARGET] CAM_MODELS=1
 
 SUDO ?= sudo
@@ -35,7 +35,9 @@ SUDO ?= sudo
 CAM_MODELS ?=
 
 CMAKE_BUILD_EXTRA_OPTIONS :=
-ifneq ($(CAM_MODELS),)
+ifeq ($(CAM_MODELS),)
+	CMAKE_BUILD_EXTRA_OPTIONS := $(CMAKE_BUILD_EXTRA_OPTIONS) -DWITH_CAM_MODELS=OFF
+else
 	CMAKE_BUILD_EXTRA_OPTIONS := $(CMAKE_BUILD_EXTRA_OPTIONS) -DWITH_CAM_MODELS=ON
 endif
 
diff --git a/cmake/Option.cmake b/cmake/Option.cmake
index 00fc825..9349320 100644
--- a/cmake/Option.cmake
+++ b/cmake/Option.cmake
@@ -44,7 +44,7 @@ else()
 endif()
 
 if(WITH_BOOST)
-  find_package(Boost COMPONENTS filesystem)
+  find_package(Boost QUIET COMPONENTS filesystem)
   if(Boost_FOUND)
     set(Boost_VERSION_STRING "${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}")
     set(WITH_FILESYSTEM TRUE)