diff --git a/fish_prompt.fish b/fish_prompt.fish
index b2069ef..2d61869 100644
--- a/fish_prompt.fish
+++ b/fish_prompt.fish
@@ -777,7 +777,7 @@ function __bobthefish_prompt_rubies -S -d 'Display current Ruby information'
     else if type -q chruby # chruby is implemented as a function, so omitting the -f is intentional
         set ruby_version $RUBY_VERSION
     else if type -fq asdf
-        asdf current ruby 2>/dev/null | string trim - l | read -l asdf_ruby_version asdf_provenance
+        asdf current ruby 2>/dev/null | read -l -t asdf_ruby_version asdf_provenance
         or return
 
         # If asdf changes their ruby version provenance format, update this to match