diff --git a/bazel/emscripten_toolchain/env.bat b/bazel/emscripten_toolchain/env.bat
index 644519ebf0..7c3f3e29cc 100644
--- a/bazel/emscripten_toolchain/env.bat
+++ b/bazel/emscripten_toolchain/env.bat
@@ -3,3 +3,7 @@
 set ROOT_DIR=%CD%
 set EMSCRIPTEN=%ROOT_DIR%\%EM_BIN_PATH%\emscripten
 set EM_CONFIG=%ROOT_DIR%\%EM_CONFIG_PATH%
+
+:: Ensure PYTHONSAFEPATH is not set so that modules in the same
+:: directory as emcc.py and emar.py etc. can be found via sys.path
+set PYTHONSAFEPATH=
diff --git a/bazel/emscripten_toolchain/env.sh b/bazel/emscripten_toolchain/env.sh
index b2a6bd60b0..44bf6f6b60 100755
--- a/bazel/emscripten_toolchain/env.sh
+++ b/bazel/emscripten_toolchain/env.sh
@@ -3,3 +3,7 @@
 export ROOT_DIR=${EXT_BUILD_ROOT:-$(pwd -P)}
 export EMSCRIPTEN=$ROOT_DIR/$EM_BIN_PATH/emscripten
 export EM_CONFIG=$ROOT_DIR/$EM_CONFIG_PATH
+
+# Ensure PYTHONSAFEPATH is not set so that modules in the same
+# directory as emcc.py and emar.py etc. can be found via sys.path
+unset PYTHONSAFEPATH