diff --git a/aliases/available/docker.aliases.bash b/aliases/available/docker.aliases.bash
index 7d837c70..e3601d6f 100644
--- a/aliases/available/docker.aliases.bash
+++ b/aliases/available/docker.aliases.bash
@@ -9,7 +9,16 @@ alias dkpsa='docker ps -a'  # List all Docker containers
 alias dki='docker images'  # List Docker images
 alias dkrmac='docker rm $(docker ps -a -q)'  # Delete all Docker containers
 alias dkrmlc='docker-remove-most-recent-container'  # Delete most recent (i.e., last) Docker container
-alias dkrmui='docker images -q -f dangling=true |xargs -r docker rmi'  # Delete all untagged Docker images
+
+case $OSTYPE in
+  darwin*|*bsd*|*BSD*)
+    alias dkrmui='docker images -q -f dangling=true | xargs docker rmi'  # Delete all untagged Docker images
+    ;;
+  *)
+    alias dkrmui='docker images -q -f dangling=true | xargs -r docker rmi'  # Delete all untagged Docker images
+    ;;
+esac
+
 alias dkrmall='docker-remove-stale-assets'  # Delete all untagged images and exited containers
 alias dkrmli='docker-remove-most-recent-image'  # Delete most recent (i.e., last) Docker image
 alias dkrmi='docker-remove-images'  # Delete images for supplied IDs or all if no IDs are passed as arguments