diff --git a/src/MusicStore.Spa/Models/Order.cs b/src/MusicStore.Spa/Models/Order.cs
index a07ed5290f..0461dbce8a 100644
--- a/src/MusicStore.Spa/Models/Order.cs
+++ b/src/MusicStore.Spa/Models/Order.cs
@@ -61,7 +61,7 @@ namespace MusicStore.Models
         [Required]
         [Display(Name = "Email Address")]
         [RegularExpression(@"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}",
-            ErrorMessage = "Email is is not valid.")]
+            ErrorMessage = "Email is not valid.")]
         [DataType(DataType.EmailAddress)]
         public string Email { get; set; }
 
diff --git a/src/MusicStore/Models/Order.cs b/src/MusicStore/Models/Order.cs
index e463d34519..1d9b12dd3e 100644
--- a/src/MusicStore/Models/Order.cs
+++ b/src/MusicStore/Models/Order.cs
@@ -58,7 +58,7 @@ namespace MusicStore.Models
         [Required]
         [Display(Name = "Email Address")]
         [RegularExpression(@"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}",
-            ErrorMessage = "Email is is not valid.")]
+            ErrorMessage = "Email is not valid.")]
         [DataType(DataType.EmailAddress)]
         public string Email { get; set; }
 
diff --git a/src/MvcMusicStore.Spa/Models/Order.cs b/src/MvcMusicStore.Spa/Models/Order.cs
index 0631a6b124..c06c1a964e 100644
--- a/src/MvcMusicStore.Spa/Models/Order.cs
+++ b/src/MvcMusicStore.Spa/Models/Order.cs
@@ -61,7 +61,7 @@ namespace MvcMusicStore.Models
         [Required]
         [DisplayName("Email Address")]
         [RegularExpression(@"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}",
-            ErrorMessage = "Email is is not valid.")]
+            ErrorMessage = "Email is not valid.")]
         [DataType(DataType.EmailAddress)]
         public string Email { get; set; }
 
diff --git a/src/MvcMusicStore/Models/Order.cs b/src/MvcMusicStore/Models/Order.cs
index 0631a6b124..c06c1a964e 100644
--- a/src/MvcMusicStore/Models/Order.cs
+++ b/src/MvcMusicStore/Models/Order.cs
@@ -61,7 +61,7 @@ namespace MvcMusicStore.Models
         [Required]
         [DisplayName("Email Address")]
         [RegularExpression(@"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}",
-            ErrorMessage = "Email is is not valid.")]
+            ErrorMessage = "Email is not valid.")]
         [DataType(DataType.EmailAddress)]
         public string Email { get; set; }