diff --git a/docs/raspberry_pi_os_build_instructions.md b/docs/raspberry_pi_os_build_instructions.md
index b1102a38..0e2a1475 100644
--- a/docs/raspberry_pi_os_build_instructions.md
+++ b/docs/raspberry_pi_os_build_instructions.md
@@ -77,7 +77,7 @@ You will be prompted to enter the current password ("raspberry") and then to ent
 # * libsqlite3-dev: required by `coverage`
 sudo apt update && sudo apt install -y build-essential zlib1g-dev \
     libncurses5-dev libgdbm-dev libnss3-dev openssl libssl-dev \
-    libreadline-dev libffi-dev wget libsqlite3-dev
+    libreadline-dev libffi-dev wget libsqlite3-dev libraqm-dev
 
 # Grab the python3.10 source
 wget https://www.python.org/ftp/python/3.10.10/Python-3.10.10.tgz