diff --git a/distros/rockylinux/entrypoint.sh b/distros/rockylinux/entrypoint.sh
index c8a0d66..5210574 100644
--- a/distros/rockylinux/entrypoint.sh
+++ b/distros/rockylinux/entrypoint.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-WORKDIR=${WORKDIR:.}
+WORKDIR=${WORKDIR:-.}
 cd "$WORKDIR"
 
 ARGS="$@"