diff --git a/ext/sst/INSTALL.md b/ext/sst/INSTALL.md
index 1034d7dd3f..91f92eb7ff 100644
--- a/ext/sst/INSTALL.md
+++ b/ext/sst/INSTALL.md
@@ -61,9 +61,12 @@ echo "export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:$SST_CORE_HOME/lib/pkgconfig/" >>
 At the root of gem5 folder,
 
 ```sh
-scons build/RISCV/libgem5_opt.so -j $(nproc) --without-tcmalloc
+scons build/RISCV/libgem5_opt.so -j $(nproc) --without-tcmalloc --duplicate-sources
 ```
 
+**Note:** `--without-tcmalloc` is required to avoid a conflict with SST's malloc.
+`--duplicate-sources` is required as the compilation of SST depends on sources to be present in the "build" directory.
+
 ### Compiling the SST integration
 
 At the root of gem5 folder,
diff --git a/tests/nightly.sh b/tests/nightly.sh
index f5f9295f3b..9286c545cd 100755
--- a/tests/nightly.sh
+++ b/tests/nightly.sh
@@ -159,7 +159,7 @@ build_and_run_SST () {
         "${gem5_root}" --rm  --memory="${docker_mem_limit}" \
         gcr.io/gem5-test/sst-env:${tag} bash -c "\
 scons build/${isa}/libgem5_${variant}.so -j${compile_threads} \
---without-tcmalloc --ignore-style && \
+--without-tcmalloc --duplicate-sources --ignore-style && \
 cd ext/sst && \
 make clean; make -j ${compile_threads} && \
 sst --add-lib-path=./ sst/example.py && \