diff --git a/signal-desktop/Dockerfile b/signal-desktop/Dockerfile
index 8b083adf8bb..956d3ddc4cb 100644
--- a/signal-desktop/Dockerfile
+++ b/signal-desktop/Dockerfile
@@ -46,6 +46,8 @@ RUN set -eux; \
 		libgtk-3-0 \
 		libx11-xcb1 \
 		libxshmfence1 \
+# LaunchProcess: failed to execvp: xdg-settings
+		xdg-utils \
 	; \
 	rm -rf /var/lib/apt/lists/*; \
 	signal="$(command -v signal-desktop)"; \
diff --git a/signal-desktop/Dockerfile.template b/signal-desktop/Dockerfile.template
index 6888c18642f..03cdfe285de 100644
--- a/signal-desktop/Dockerfile.template
+++ b/signal-desktop/Dockerfile.template
@@ -40,6 +40,8 @@ RUN set -eux; \
 		libgtk-3-0 \
 		libx11-xcb1 \
 		libxshmfence1 \
+# LaunchProcess: failed to execvp: xdg-settings
+		xdg-utils \
 	; \
 	rm -rf /var/lib/apt/lists/*; \
 	signal="$(command -v signal-desktop)"; \