diff --git a/common/src/main/java/me/lucko/luckperms/common/commands/generic/parent/ParentRemove.java b/common/src/main/java/me/lucko/luckperms/common/commands/generic/parent/ParentRemove.java
index 04aab8a5..fb12f4f3 100644
--- a/common/src/main/java/me/lucko/luckperms/common/commands/generic/parent/ParentRemove.java
+++ b/common/src/main/java/me/lucko/luckperms/common/commands/generic/parent/ParentRemove.java
@@ -57,7 +57,7 @@ public class ParentRemove extends SharedSubCommand {
 
     @Override
     public CommandResult execute(LuckPermsPlugin plugin, Sender sender, PermissionHolder holder, List<String> args, String label) throws CommandException {
-        String groupName = ArgumentUtils.handleName(0, args);
+        String groupName = ArgumentUtils.handleNameWithSpace(0, args);
         String server = ArgumentUtils.handleServer(1, args);
         String world = ArgumentUtils.handleWorld(2, args);
 
diff --git a/common/src/main/java/me/lucko/luckperms/common/commands/generic/parent/ParentRemoveTemp.java b/common/src/main/java/me/lucko/luckperms/common/commands/generic/parent/ParentRemoveTemp.java
index e463b8c2..77b72e58 100644
--- a/common/src/main/java/me/lucko/luckperms/common/commands/generic/parent/ParentRemoveTemp.java
+++ b/common/src/main/java/me/lucko/luckperms/common/commands/generic/parent/ParentRemoveTemp.java
@@ -56,7 +56,7 @@ public class ParentRemoveTemp extends SharedSubCommand {
 
     @Override
     public CommandResult execute(LuckPermsPlugin plugin, Sender sender, PermissionHolder holder, List<String> args, String label) throws CommandException {
-        String groupName = ArgumentUtils.handleName(0, args);
+        String groupName = ArgumentUtils.handleNameWithSpace(0, args);
         String server = ArgumentUtils.handleServer(1, args);
         String world = ArgumentUtils.handleWorld(2, args);
 
diff --git a/common/src/main/java/me/lucko/luckperms/common/commands/utils/ArgumentUtils.java b/common/src/main/java/me/lucko/luckperms/common/commands/utils/ArgumentUtils.java
index c69e028d..84f8c002 100644
--- a/common/src/main/java/me/lucko/luckperms/common/commands/utils/ArgumentUtils.java
+++ b/common/src/main/java/me/lucko/luckperms/common/commands/utils/ArgumentUtils.java
@@ -65,6 +65,14 @@ public class ArgumentUtils {
         return groupName;
     }
 
+    public static String handleNameWithSpace(int index, List<String> args) throws ArgumentException {
+        String groupName = args.get(index).toLowerCase();
+        if (ArgumentChecker.checkNameWithSpace(groupName)) {
+            throw new DetailedUsageException();
+        }
+        return groupName;
+    }
+
     public static boolean handleBoolean(int index, List<String> args) throws ArgumentException {
         if (index < args.size()) {
             String bool = args.get(index);
diff --git a/common/src/main/java/me/lucko/luckperms/common/constants/Patterns.java b/common/src/main/java/me/lucko/luckperms/common/constants/Patterns.java
index c35ccd35..e2361a56 100644
--- a/common/src/main/java/me/lucko/luckperms/common/constants/Patterns.java
+++ b/common/src/main/java/me/lucko/luckperms/common/constants/Patterns.java
@@ -38,6 +38,7 @@ import java.util.regex.Pattern;
 public class Patterns {
     public static final Pattern COMMAND_SEPARATOR = Pattern.compile(" (?=([^\\\"]*\\\"[^\\\"]*\\\")*[^\\\"]*$)");
     public static final Pattern NON_ALPHA_NUMERIC = Pattern.compile("[\\/\\$\\.\\- ]");
+    public static final Pattern NON_ALPHA_NUMERIC_SPACE = Pattern.compile("[\\/\\$\\.\\-]");
     public static final Pattern NON_USERNAME = Pattern.compile("[^A-Za-z0-9_ ]");
     public static final Pattern SHORTHAND_NODE = Pattern.compile("\\.\\([^.]+\\)");
     public static final Pattern STRIP_COLOR_PATTERN = Pattern.compile("(?i)" + String.valueOf('§') + "[0-9A-FK-OR]");
diff --git a/common/src/main/java/me/lucko/luckperms/common/utils/ArgumentChecker.java b/common/src/main/java/me/lucko/luckperms/common/utils/ArgumentChecker.java
index ea8c4340..130ab40a 100644
--- a/common/src/main/java/me/lucko/luckperms/common/utils/ArgumentChecker.java
+++ b/common/src/main/java/me/lucko/luckperms/common/utils/ArgumentChecker.java
@@ -40,6 +40,10 @@ public class ArgumentChecker {
         return (s.length() > 36 || Patterns.NON_ALPHA_NUMERIC.matcher(s).find());
     }
 
+    public static boolean checkNameWithSpace(String s) {
+        return (s.length() > 36 || Patterns.NON_ALPHA_NUMERIC_SPACE.matcher(s).find());
+    }
+
     public static boolean checkServer(String s) {
         return s.toLowerCase().startsWith("r=") || (s.startsWith("(") && s.endsWith(")") && s.contains("|")) || Patterns.NON_ALPHA_NUMERIC.matcher(s).find();
     }