diff --git a/bash-abbr b/bash-abbr
index 7791ace..a939959 100644
--- a/bash-abbr
+++ b/bash-abbr
@@ -223,7 +223,7 @@ _try_abbrev_internal () {
         # [[ $point -eq ${#line} || "${line:point:1}" = ["${_bash_meta_chars[*]}"] ]] &&
         # NOTE: Above line commented out, it's actually not that useful.
 
-        # Determine word to complete
+        # Determine word to complete by stripping leading shell metacharacters
         # Uses the same word separators as bash (| & ; ( ) space tab newline) (aka "shell metacharacters")
         # But < and > are ignored, since they always expect a file/delimiter/string afterwards and not a command
         declare -r word_at_point=${line_until_point##*["${_bash_meta_chars_without_left_right_angle_brackets[*]}"]} &&
@@ -306,16 +306,19 @@ _try_abbrev_internal () {
     fi
 
     # Advance mark if it's set and right of (or on) the point.
-    [[ $mark && mark -ge point ]] && eval "$new_mark"'=$((mark+offset))'
+    [[ $mark && mark -gt point ]] && eval "$new_mark"'=$((mark+offset))'
+    [[ -v "$new_mark" ]] || eval "$new_mark"'=$mark'
 
     # Advance point.
     eval "$new_point"'=$((point+offset))'
-    # NB: READLINE_ARGUMENT is deliberately ignored.
+    # NB: READLINE_ARGUMENT is deliberately ignored, as it doesn't make sense for interactive alias expansion.
 }
+
 _try_abbrev () {
-    # For use within bind -x.
-    # Perform abbreviation lookup and interactive expansion on the word left to the cursor (no quote parsing).
-    # Takes a single argument which is the character to self-insert (usually space or another shell metacharacter).
+    # For use within bash's bind -x builtin.
+    # Perform interactive alias expansion on the word left to the cursor (no quote parsing) and also *on* the cursor if the
+    # self-insertion character is empty (which represents pressing enter).
+    # Takes a single argument which is the character to self-insert (usually space or another shell metacharacter, or empty for newline/enter).
 
     # To prevent infinite recursion, we need to keep track
     # of which aliases have been expanded. This function re-initializes the global associative array (used as a hash set)