diff --git a/doc/build-unix.md b/doc/build-unix.md
index dfeb8ba2601..3f8848abf28 100644
--- a/doc/build-unix.md
+++ b/doc/build-unix.md
@@ -278,6 +278,7 @@ To build executables for ARM:
     cd depends
     make HOST=arm-linux-gnueabihf NO_QT=1
     cd ..
+    ./autogen.sh
     ./configure --prefix=$PWD/depends/arm-linux-gnueabihf --enable-glibc-back-compat --enable-reduce-exports LDFLAGS=-static-libstdc++
     make