diff --git a/README.md b/README.md
index 7a74fb3..4655d19 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,4 @@ copy it into your gemini directory and make it executable of course
 
 ## Changelog
 * 2021-10-18: thrown together in an hour
+* 2021-10-19: thrown through shellcheck
diff --git a/index.gmi b/index.gmi
index 89dd2db..cde4a19 100755
--- a/index.gmi
+++ b/index.gmi
@@ -1,10 +1,10 @@
 #!/usr/bin/env bash
-if [ -z $QUERY_STRING ]; then
+if [[ -z "$QUERY_STRING" ]]; then
 	printf "10 Please enter your name!\r\n"
 fi
 name=$QUERY_STRING
 printf "20 text/gemini\r\n"
-printf "# Pronoun Dressing Room for ${name}\n"
+printf "# Pronoun Dressing Room for %s\n" "$name"
 
 sentences=("I really enjoy spending time with OBJECTIVE." "NAME is really cool, I like OBJECTIVE." "POSESSIVEDT accent is nice." "That belongs to OBJECTIVE." "NAME did so well, SUBJECTIVE MSHAS every reason to be proud of REFLEXIVE.")
 
@@ -17,7 +17,7 @@ pr_ref=("himself" "herself" "themselves" "xemself")
 cnt=0
 
 for i in "${pr_sub[@]}"; do
-    printf "${i}:\n---\n"
+    printf "%s:\n---\n" "$i"
     
     for j in "${sentences[@]}"; do
         cursent="${j}"
@@ -36,7 +36,7 @@ for i in "${pr_sub[@]}"; do
         cursent="${cursent//POSESSIVEDT/"${pr_psd[${cnt}]}"}"
         cursent="${cursent//POSESSIVE/"${pr_pos[${cnt}]}"}"
         cursent="${cursent//REFLEXIVE/"${pr_ref[${cnt}]}"}"
-        printf "${cursent^}\n"
+        printf "%s\n" "${cursent^}"
     done
     
     printf "\n"