diff --git a/docker/sia/Dockerfile b/docker/sia/Dockerfile
index 4032168f..953dd27c 100644
--- a/docker/sia/Dockerfile
+++ b/docker/sia/Dockerfile
@@ -12,5 +12,5 @@ FROM nebulouslabs/sia:1.5.6
 
 COPY --from=sia-builder /go/bin/ /usr/bin/
 
-RUN if [[ -f "/usr/bin/skyd" ]]; then mv /usr/bin/skyd /usr/bin/siad; fi && \
-    if [[ -f "/usr/bin/skyc" ]]; then mv /usr/bin/skyc /usr/bin/siac; fi
+RUN if [ -f "/usr/bin/skyd" ]; then mv /usr/bin/skyd /usr/bin/siad; fi && \
+    if [ -f "/usr/bin/skyc" ]; then mv /usr/bin/skyc /usr/bin/siac; fi