diff --git a/steam-runtime-tools/system-info.c b/steam-runtime-tools/system-info.c
index 6d287dac01a4379a78773f866731c384f63833e6..aa79dd5766a662b067847c749ac86c1b676703a2 100644
--- a/steam-runtime-tools/system-info.c
+++ b/steam-runtime-tools/system-info.c
@@ -3378,7 +3378,9 @@ ensure_driver_environment (SrtSystemInfo *self)
         "DISPLAY",
         "DRI_PRIME",
         "EGL_PLATFORM",
+        "ESPEAKER",
         "GST_PLUGIN_SYSTEM_PATH",
+        "LADSPA_PATH",
         "LD_LIBRARY_PATH",
         "LD_PRELOAD",
         "LIBVA_DRIVER_NAME",
@@ -3386,6 +3388,15 @@ ensure_driver_environment (SrtSystemInfo *self)
         "MESA_LOADER_DRIVER_OVERRIDE",
         "MESA_VK_DEVICE_SELECT",
         "MIDIDEV",
+        "PULSE_CLIENTCONFIG",
+        "PULSE_CONFIG_PATH",
+        "PULSE_LATENCY_MSEC",
+        "PULSE_RUNTIME_PATH",
+        "PULSE_SERVER",
+        "PULSE_SINK",
+        "PULSE_SOURCE",
+        "PULSE_STATE_PATH",
+        "PULSE_SYSTEM",
         "SDL_ACCELEROMETER_AS_JOYSTICK",
         "SDL_AUDIODRIVER",
         "SDL_AUDIO_CHANNELS",