diff --git a/tools/lammps-gui/CMakeLists.txt b/tools/lammps-gui/CMakeLists.txt
index fc111f5c64c..5ac23daac79 100644
--- a/tools/lammps-gui/CMakeLists.txt
+++ b/tools/lammps-gui/CMakeLists.txt
@@ -205,7 +205,7 @@ if(FLATPAK_COMMAND AND FLATPAK_BUILDER)
   file(STRINGS ${LAMMPS_DIR}/src/version.h line REGEX LAMMPS_VERSION)
   string(REGEX REPLACE "#define LAMMPS_VERSION \"([0-9]+) ([A-Za-z][A-Za-z][A-Za-z])[A-Za-z]* ([0-9]+)\""
                         "\\1\\2\\3" LAMMPS_RELEASE "${line}")
-  set(FLATPAK_BUNDLE "LAMMPS_GUI-Linux-amd64-${LAMMPS_RELEASE}.flatpak")
+  set(FLATPAK_BUNDLE "LAMMPS-Linux-x86_64-GUI-${LAMMPS_RELEASE}.flatpak")
   add_custom_target(flatpak
     COMMAND ${FLATPAK_COMMAND} --user remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
     COMMAND ${FLATPAK_BUILDER} --force-clean --verbose --repo=${CMAKE_CURRENT_BINARY_DIR}/flatpak-repo
diff --git a/tools/lammps-gui/org.lammps.lammps-gui.yml b/tools/lammps-gui/org.lammps.lammps-gui.yml
index 548c4ce93e3..02d517e210e 100644
--- a/tools/lammps-gui/org.lammps.lammps-gui.yml
+++ b/tools/lammps-gui/org.lammps.lammps-gui.yml
@@ -88,6 +88,7 @@ modules:
       - -D PKG_QTB=yes
       - -D PKG_REACTION=yes
       - -D PKG_REAXFF=yes
+      - -D PKG_RHEO=yes
       - -D PKG_RIGID=yes
       - -D PKG_SHOCK=yes
       - -D PKG_SMTBQ=yes