diff --git a/Dockerfile.buildenv b/Dockerfile.buildenv
index cb3b6c3a9d..904948aaf1 100644
--- a/Dockerfile.buildenv
+++ b/Dockerfile.buildenv
@@ -12,12 +12,18 @@ RUN dpkg --add-architecture i386 && apt-get update && apt-get -y install \
     libqt5x11extras5-dev \
     qtbase5-dev \
     qt6-base-dev \
+    unzip \
     wget
 
 SHELL ["/bin/bash", "-c"]
 
-# install compilers
-RUN tarballs=( \
+# install compilers, but first save (to root directory for simplicity) docs archive for stable FPC (needed to build Lazarus docs)
+RUN docarchive=doc-chm.zip; \
+    wget --no-verbose --output-document=/$docarchive https://downloads.freepascal.org/fpc/dist/$FPC_STABLE_VER/docs/$docarchive; \
+    if [ ! -f /$docarchive ]; then \
+      exit 1; \
+    fi; \
+    tarballs=( \
               "https://sourceforge.net/projects/freepascal/files/Linux/$FPC_OLDSTABLE_VER/fpc-$FPC_OLDSTABLE_VER-x86_64-linux.tar fpc-$FPC_OLDSTABLE_VER-x86_64-linux" \
               "https://sourceforge.net/projects/freepascal/files/Linux/$FPC_STABLE_VER/fpc-$FPC_STABLE_VER.x86_64-linux.tar fpc-$FPC_STABLE_VER.x86_64-linux" \
               "https://gitlab.com/freepascal.org/fpc/build/-/jobs/artifacts/fixes_3_2/raw/fpc-$FPC_FIXES_VER.x86_64-linux.tar?job=build-job fpc-$FPC_FIXES_VER.x86_64-linux" \