diff --git a/src/Compilers/Core/Portable/Compilation.EmitStream.cs b/src/Compilers/Core/Portable/Compilation.EmitStream.cs
index eeaa3b8a4d5430aee3399bdbc54e33a288e19f36..0a85d308e0605a3dd2a53ff97d387a0ea69e4010 100644
--- a/src/Compilers/Core/Portable/Compilation.EmitStream.cs
+++ b/src/Compilers/Core/Portable/Compilation.EmitStream.cs
@@ -23,7 +23,7 @@ internal enum EmitStreamSignKind
             /// This form of signing occurs in memory using the <see cref="PEBuilder"/> APIs. This is the default 
             /// form of signing and will be used when a strong name key is provided in a file on disk.
             /// </summary>
-            SignedWithBulider,
+            SignedWithBuilder,
 
             /// <summary>
             /// This form of signing occurs using the <see cref="IClrStrongName"/> COM APIs. This form of signing
diff --git a/src/Compilers/Core/Portable/Compilation/Compilation.cs b/src/Compilers/Core/Portable/Compilation/Compilation.cs
index 2f02d25de95da006408f690bd44d00203b3bf966..97ebd9fd66b015f3ca7952b56928d095d6ff8e79 100644
--- a/src/Compilers/Core/Portable/Compilation/Compilation.cs
+++ b/src/Compilers/Core/Portable/Compilation/Compilation.cs
@@ -2727,7 +2727,7 @@ internal void EnsureAnonymousTypeTemplates(CancellationToken cancellationToken)
             try
             {
                 var signKind = IsRealSigned
-                    ? (SignUsingBuilder ? EmitStreamSignKind.SignedWithBulider : EmitStreamSignKind.SignedWithFile)
+                    ? (SignUsingBuilder ? EmitStreamSignKind.SignedWithBuilder : EmitStreamSignKind.SignedWithFile)
                     : EmitStreamSignKind.None;
                 emitPeStream = new EmitStream(peStreamProvider, signKind, Options.StrongNameProvider);
                 emitMetadataStream = metadataPEStreamProvider == null