diff --git a/cmake/Modules/LAMMPSUtils.cmake b/cmake/Modules/LAMMPSUtils.cmake
index bb5ea07609..2ec9d1b706 100644
--- a/cmake/Modules/LAMMPSUtils.cmake
+++ b/cmake/Modules/LAMMPSUtils.cmake
@@ -83,17 +83,17 @@ function(check_for_autogen_files source_dir)
     file(GLOB SRC_AUTOGEN_FILES CONFIGURE_DEPENDS ${source_dir}/style_*.h)
     file(GLOB SRC_AUTOGEN_PACKAGES CONFIGURE_DEPENDS ${source_dir}/packages_*.h)
     list(APPEND SRC_AUTOGEN_FILES ${SRC_AUTOGEN_PACKAGES} ${source_dir}/lmpinstalledpkgs.h ${source_dir}/lmpgitversion.h)
-    list(APPEND SRC_AUTOGEN_FILES ${SRC_AUTOGEN_PACKAGES} ${source_dir}/mliap_model_python_couple.h ${source_dir}/mliap_model_python_couple.cpp)
+    list(APPEND SRC_AUTOGEN_FILES ${source_dir}/mliap_model_python_couple.h ${source_dir}/mliap_model_python_couple.cpp)
     foreach(_SRC ${SRC_AUTOGEN_FILES})
       get_filename_component(FILENAME "${_SRC}" NAME)
       if(EXISTS ${source_dir}/${FILENAME})
         message(FATAL_ERROR "\n########################################################################\n"
-                              "Found header file(s) generated by the make-based build system\n"
-                              "\n"
-                              "Please run\n"
-                              "make -C ${source_dir} purge\n"
-                              "to remove\n"
-                              "########################################################################")
+                            "Found header file ${source_dir}/${FILENAME} generated by the make-based build system\n"
+                            "\n"
+                            "Please run\n"
+                            "make -C ${source_dir} purge\n"
+                            "to remove\n"
+                            "########################################################################")
       endif()
     endforeach()
 endfunction()
diff --git a/src/Purge.list b/src/Purge.list
index 3052c3af1d..14708a111e 100644
--- a/src/Purge.list
+++ b/src/Purge.list
@@ -8,6 +8,7 @@ style_compute.h
 style_dihedral.h
 style_dump.h
 style_fix.h
+style_gran_sub_mod.h
 style_improper.h
 style_integrate.h
 style_kspace.h
@@ -32,6 +33,7 @@ packages_compute.h
 packages_dihedral.h
 packages_dump.h
 packages_fix.h
+packages_gran_sub_mod.h
 packages_improper.h
 packages_integrate.h
 packages_kspace.h