diff --git a/encryptallthings.js b/encryptallthings.js
index f5dafb6..bdabdea 100644
--- a/encryptallthings.js
+++ b/encryptallthings.js
@@ -6,7 +6,7 @@ const workshop = require('workshopper-adventure')({
 })
 
 workshop.addAll([
-  'CAESER_CYPHER'
+  'CAESAR_CIPHER'
 ])
 
 module.exports = workshop
diff --git a/exercises/caeser_cypher/exercise.js b/exercises/caesar_cipher/exercise.js
similarity index 100%
rename from exercises/caeser_cypher/exercise.js
rename to exercises/caesar_cipher/exercise.js
diff --git a/exercises/caeser_cypher/problem.md b/exercises/caesar_cipher/problem.md
similarity index 100%
rename from exercises/caeser_cypher/problem.md
rename to exercises/caesar_cipher/problem.md
diff --git a/exercises/caeser_cypher/solution/solution.js b/exercises/caesar_cipher/solution/solution.js
similarity index 88%
rename from exercises/caeser_cypher/solution/solution.js
rename to exercises/caesar_cipher/solution/solution.js
index fc5afa7..a07d0d8 100644
--- a/exercises/caeser_cypher/solution/solution.js
+++ b/exercises/caesar_cipher/solution/solution.js
@@ -1,6 +1,6 @@
 var arg = process.argv[2];
 
-function caesarCypher(text, shift) {
+function caesarCipher(text, shift) {
   if (shift < 0)
     return caeserShift(str, shift + 26);
 
@@ -24,5 +24,5 @@ function caesarCypher(text, shift) {
   return output;
 }
 
-var result = caesarCypher(arg, 4);
+var result = caesarCipher(arg, 4);
 console.log(result);