diff --git a/bin/scripts/generate-casks.sh b/bin/scripts/generate-casks.sh
index 7b933f6d4..9875bbe30 100755
--- a/bin/scripts/generate-casks.sh
+++ b/bin/scripts/generate-casks.sh
@@ -233,7 +233,7 @@ while read -r filename; do
     FONTS=()
     while IFS= read -d $'\0' -r file; do
         FONTS=("${FONTS[@]}" "$file")
-    done < <(find "$searchdir" -type f -iwholename '*complete*' \( -iname '*.[o,t]tf' ! -wholename '*Windows Compatible*' \) -print0 | sort -z)
+    done < <(find "$searchdir" -type f -iwholename '*complete*' \( -iname '*.[ot]tf' ! -wholename '*Windows Compatible*' \) -print0 | sort -z)
 
     outputdir=$PWD/../casks
 
diff --git a/bin/scripts/generate-fontconfig.sh b/bin/scripts/generate-fontconfig.sh
index 713a5a86e..990897b7f 100755
--- a/bin/scripts/generate-fontconfig.sh
+++ b/bin/scripts/generate-fontconfig.sh
@@ -51,7 +51,7 @@ do
 	while IFS= read -d $'\0' -r file ; do
 	  FONTS=("${FONTS[@]}" "$file")
 	# limit to first variation of family (folder)
-  done < <(find "$searchdir" -type f -iname '*.[o,t]tf' -print0)
+  done < <(find "$searchdir" -type f -iname '*.[ot]tf' -print0)
   #done
 
   for font in "${FONTS[@]}"; do
diff --git a/bin/scripts/gotta-patch-em-all-font-patcher!.sh b/bin/scripts/gotta-patch-em-all-font-patcher!.sh
index 670763131..542279f18 100755
--- a/bin/scripts/gotta-patch-em-all-font-patcher!.sh
+++ b/bin/scripts/gotta-patch-em-all-font-patcher!.sh
@@ -364,7 +364,7 @@ function copy_license {
     # cp "$license_file" "$dest" # makes archiving multiple harder when we junk the paths for the archive
     [[ -d "$dest/complete" ]] || mkdir -p "$dest/complete"
     cp "$license_file" -t "$dest/complete"
-  done < <(find "$src" -iregex ".*\(licen[c,s]e\|ofl\).*" -type f -print0)
+  done < <(find "$src" -iregex ".*\(licen[cs]e\|ofl\).*" -type f -print0)
 }
 
 # Re-generate all the readmes
@@ -416,7 +416,7 @@ then
       # some of the source font files in that directory.
       last_source_dir=${current_source_dir}
       num_to_patch=$(find "${current_source_dir}" -iregex ${like_pattern} -type f | wc -l)
-      num_existing=$(find "${current_source_dir}" -iname "*.[o,t]tf" -o -iname "*.sfd" -type f | wc -l)
+      num_existing=$(find "${current_source_dir}" -iname "*.[ot]tf" -o -iname "*.sfd" -type f | wc -l)
       if [ ${num_to_patch} -eq ${num_existing} ]
       then
         purge_destination="TRUE"
diff --git a/install.sh b/install.sh
index f2dacaf24..137c317db 100755
--- a/install.sh
+++ b/install.sh
@@ -179,7 +179,7 @@ implode find_dirs "\" \"" "${nerdfonts_dirs[@]}"
 find_dirs="\"$find_dirs\""
 
 # Put it all together into the find command we want
-find_command="find $find_dirs \\( \\( -name '*.[o,t]tf' -or -name '*.pcf.gz' \\) $find_include $find_exclude \\) -type f -print0"
+find_command="find $find_dirs \\( \\( -name '*.[ot]tf' -or -name '*.pcf.gz' \\) $find_include $find_exclude \\) -type f -print0"
 
 # Find all the font files and store in array
 files=()