diff --git a/ext/dramsys/SConscript b/ext/dramsys/SConscript
index 7523db79f1..86aa523dce 100644
--- a/ext/dramsys/SConscript
+++ b/ext/dramsys/SConscript
@@ -65,6 +65,7 @@ subprocess.run(
         f"-DSCONS_SOURCE_DIR:STRING={scons_root}",
         "-DDRAMSYS_BUILD_CLI=OFF",
         "-DDRAMSYS_USE_FETCH_CONTENT=ON",
+        "-DDRAMSYS_USE_FETCH_CONTENT_INTERNAL=OFF",
         "-DDRAMSYS_USE_FETCH_CONTENT_SYSTEMC=OFF",
         "-DDRAMSYS_SHARED_PIM_UNITS=ON"
     ],