diff --git a/docker-build/scripts/04_install.sh b/docker-build/scripts/04_install.sh
index 3b9453c308..6079c3504d 100755
--- a/docker-build/scripts/04_install.sh
+++ b/docker-build/scripts/04_install.sh
@@ -1,3 +1,11 @@
 cd "${BUILD_DIR}"
 
 make install
+
+# Manually remove the lib, include and share directories coming
+# from the GNUInstallDirs. Unfortunately it's not possible to
+# easily disable in CMake all installation targets exported when
+# using add_subdirectory so we drop them from installation manually.
+# This is done to heavily reduce the resulting install size.
+cd "${INSTALL_DIR}"
+rm -rf lib include share