diff --git a/rc/extra/racer.kak b/rc/extra/racer.kak
index 6e2b07b5..cf0359ef 100644
--- a/rc/extra/racer.kak
+++ b/rc/extra/racer.kak
@@ -111,13 +111,12 @@ define-command racer-go-definition -docstring "Jump to where the rust identifier
           racer_column=$(printf %s\\n "$racer_data" | cut -f4 )
           racer_file=$(printf %s\\n "$racer_data" | cut -f5 )
           printf %s\\n "edit -existing '$racer_file' $racer_line $racer_column"
-          if [[ "$racer_file" == ${RUST_SRC_PATH}* ]]; then
-            printf %s\\n "set-option buffer readonly true" # The definition resides on the standard library, and the new buffer should be readonly
-          else
-            if [[ "$racer_file" == ${HOME}/.cargo/registry/src* ]]; then
-              printf %s\\n "set-option buffer readonly true" # The definition resides on an external crate, and the new buffer should be readonly
-            fi
-          fi
+          case ${racer_file} in
+            "${RUST_SRC_PATH}"*)
+              printf %s\\n "set-option buffer readonly true";; # The definition resides on the standard library, and the new buffer should be readonly
+            "${HOME}/.cargo/registry/src/"*)
+              printf %s\\n "set-option buffer readonly true";; # The definition resides on an external crate, and the new buffer should be readonly
+          esac
         else
           printf %s\\n "echo -debug 'racer could not find a definition'"
         fi
@@ -137,9 +136,11 @@ define-command racer-show-doc -docstring "Show the documentation about the rust
         racer_match=$(printf %s\\n "$racer_data" | cut -f1)
         if [ "$racer_match" = "MATCH" ]; then
           racer_doc=$(printf %s\\n "$racer_data" | cut -f9 )
+          remove_surrond_quotes_regex='s/^"\(.*\)"$/\1/g'
+          escape_at_sign_regex="s/@/\\\\@/g"
           racer_doc=$(printf %s\\n "$racer_doc" |
-            sed -e 's/^"\(.*\)"$/\1/g' | # Remove leading and trailing quotes
-            sed -e "s/@/\\\\@/g")        # Escape all @ so that it can be properly used in the string expansion
+            sed -e "$remove_surrond_quotes_regex" \
+                -e "$escape_at_sign_regex")
           printf "info %%@$racer_doc@"
         else
           printf %s\\n "echo -debug 'racer could not find a definition'"