diff --git a/README.md b/README.md
index 4411e96..e1325cf 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,7 @@ Dependencies are CMake, Qt 5 with QtMultimedia, QtOpenGL and QtSvg, FFMPEG (liba
 protoc and the protobuf Python library (only used during compilation for Nanopb).
 Then, Chiaki builds just like any other CMake project:
 ```
+git submodule update --init
 mkdir build && cd build
 cmake ..
 make
@@ -69,4 +70,4 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with this program.  If not, see <https://www.gnu.org/licenses/>.
\ No newline at end of file
+along with this program.  If not, see <https://www.gnu.org/licenses/>.