diff --git a/kse/src/main/java/org/kse/gui/CurrentDirectory.java b/kse/src/main/java/org/kse/gui/CurrentDirectory.java
index 1f0af25b2..5da8b921d 100644
--- a/kse/src/main/java/org/kse/gui/CurrentDirectory.java
+++ b/kse/src/main/java/org/kse/gui/CurrentDirectory.java
@@ -43,7 +43,7 @@ private static void initialiseWorkingDirToBeHomeDir() {
     }
 
     /**
-     * Update CurrentSirectory to be the supplied directory.
+     * Update CurrentDirectory to be the supplied directory.
      *
      * @param directory Used to set current directory
      */
diff --git a/kse/src/main/java/org/kse/gui/dialogs/DialogHelper.java b/kse/src/main/java/org/kse/gui/dialogs/DialogHelper.java
index b8e5abe9a..4d1cae4c2 100644
--- a/kse/src/main/java/org/kse/gui/dialogs/DialogHelper.java
+++ b/kse/src/main/java/org/kse/gui/dialogs/DialogHelper.java
@@ -114,8 +114,8 @@ public static void populateSigAlgs(KeyPairType keyPairType, PrivateKey privateKe
      */
     public static void populatePkcs10Challenge(Attribute[] attributes, JTextField textField) {
 
-        ASN1ObjectIdentifier pkcs9AtChallengepassword = PKCSObjectIdentifiers.pkcs_9_at_challengePassword;
-        populateTextField(attributes, textField, pkcs9AtChallengepassword);
+        ASN1ObjectIdentifier pkcs9AtChallengePassword = PKCSObjectIdentifiers.pkcs_9_at_challengePassword;
+        populateTextField(attributes, textField, pkcs9AtChallengePassword);
     }
 
     /**
diff --git a/kse/src/main/java/org/kse/gui/dialogs/extensions/DAddExtensionType.java b/kse/src/main/java/org/kse/gui/dialogs/extensions/DAddExtensionType.java
index f90d3e5ca..0509e7599 100644
--- a/kse/src/main/java/org/kse/gui/dialogs/extensions/DAddExtensionType.java
+++ b/kse/src/main/java/org/kse/gui/dialogs/extensions/DAddExtensionType.java
@@ -192,9 +192,9 @@ private void populateExtensionTypes() {
         // Population is the supported set minus those already added
         ArrayList<X509ExtensionType> availableExtensions = new ArrayList<>();
 
-        for (X509ExtensionType extentionType : SUPPORTED_EXTENSIONS) {
-            if (extensions.getExtensionValue(extentionType.oid()) == null) {
-                availableExtensions.add(extentionType);
+        for (X509ExtensionType extensionType : SUPPORTED_EXTENSIONS) {
+            if (extensions.getExtensionValue(extensionType.oid()) == null) {
+                availableExtensions.add(extensionType);
             }
         }
 
diff --git a/kse/src/main/java/org/kse/gui/dialogs/extensions/DAddExtensions.java b/kse/src/main/java/org/kse/gui/dialogs/extensions/DAddExtensions.java
index 31abc0bb1..f0c352eae 100644
--- a/kse/src/main/java/org/kse/gui/dialogs/extensions/DAddExtensions.java
+++ b/kse/src/main/java/org/kse/gui/dialogs/extensions/DAddExtensions.java
@@ -825,7 +825,7 @@ public static void saveTemplatePressed(X509ExtensionSet extensionsToSave, JDialo
     }
 
     /**
-     * Get chosen certficate extensions.
+     * Get chosen certificate extensions.
      *
      * @return Certificate extensions or null if dialog cancelled.
      */