diff --git a/bash_aliases b/bash_aliases
index 30c662d..5a6c7e9 100755
--- a/bash_aliases
+++ b/bash_aliases
@@ -125,3 +125,11 @@ fi
 if [ -f ~/.bash_aliases.local ]; then
     . ~/.bash_aliases.local
 fi
+# source any alias files in ~/.bash_aliases.d,
+# or within a subdirectory thereof
+# this allows multiple alias files or repositories of alias files
+for f in ~/.bash_aliases.d/* ~/.bash_aliases.d/*/*; do
+    if [ -f $f -a -x $f ]; then
+        . $f
+    fi
+done