diff --git a/PKHeX.Core/PKM/PK1.cs b/PKHeX.Core/PKM/PK1.cs
index 481ca9ee3..68d6656e7 100644
--- a/PKHeX.Core/PKM/PK1.cs
+++ b/PKHeX.Core/PKM/PK1.cs
@@ -64,7 +64,7 @@ namespace PKHeX.Core
             get => StringConverter.GetString1(nick, 0, nick.Length, Japanese);
             set
             {
-                if (!IsNicknamed)
+                if (!IsNicknamed && Nickname == value)
                     return;
 
                 byte[] strdata = SetString(value, StringLength);
diff --git a/PKHeX.Core/PKM/PK2.cs b/PKHeX.Core/PKM/PK2.cs
index 54eafb468..50fe7fbe6 100644
--- a/PKHeX.Core/PKM/PK2.cs
+++ b/PKHeX.Core/PKM/PK2.cs
@@ -81,7 +81,7 @@ namespace PKHeX.Core
             }
             set
             {
-                if (!IsNicknamed)
+                if (!IsNicknamed && Nickname == value)
                     return;
 
                 byte[] strdata = SetString(value, StringLength);