diff --git a/src/ARMeilleure/IntermediateRepresentation/Intrinsic.cs b/src/ARMeilleure/IntermediateRepresentation/Intrinsic.cs
index f5a776fa2..df5d39ae4 100644
--- a/src/ARMeilleure/IntermediateRepresentation/Intrinsic.cs
+++ b/src/ARMeilleure/IntermediateRepresentation/Intrinsic.cs
@@ -1,5 +1,8 @@
+using System;
+
 namespace ARMeilleure.IntermediateRepresentation
 {
+    [Flags]
     enum Intrinsic : ushort
     {
         // X86 (SSE and AVX)
diff --git a/src/Ryujinx.Graphics.Shader/Decoders/InstDecoders.cs b/src/Ryujinx.Graphics.Shader/Decoders/InstDecoders.cs
index 136762938..c7c506ec4 100644
--- a/src/Ryujinx.Graphics.Shader/Decoders/InstDecoders.cs
+++ b/src/Ryujinx.Graphics.Shader/Decoders/InstDecoders.cs
@@ -1,3 +1,5 @@
+using System;
+
 namespace Ryujinx.Graphics.Shader.Decoders
 {
     enum AlSize
@@ -711,6 +713,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
         TexSamplerBorderColor = 22,
     }
 
+    [Flags]
     enum VectorSelect
     {
         U8B0 = 0,
diff --git a/src/Ryujinx.Graphics.Shader/Decoders/InstProps.cs b/src/Ryujinx.Graphics.Shader/Decoders/InstProps.cs
index 1af94ab59..3f39e631d 100644
--- a/src/Ryujinx.Graphics.Shader/Decoders/InstProps.cs
+++ b/src/Ryujinx.Graphics.Shader/Decoders/InstProps.cs
@@ -1,5 +1,8 @@
+using System;
+
 namespace Ryujinx.Graphics.Shader.Decoders
 {
+    [Flags]
     enum InstProps : ushort
     {
         None = 0,
diff --git a/src/Ryujinx.Graphics.Shader/Translation/AggregateType.cs b/src/Ryujinx.Graphics.Shader/Translation/AggregateType.cs
index b1b40f652..a54eddc59 100644
--- a/src/Ryujinx.Graphics.Shader/Translation/AggregateType.cs
+++ b/src/Ryujinx.Graphics.Shader/Translation/AggregateType.cs
@@ -1,5 +1,8 @@
-namespace Ryujinx.Graphics.Shader.Translation
+using System;
+
+namespace Ryujinx.Graphics.Shader.Translation
 {
+    [Flags]
     enum AggregateType
     {
         Invalid,
diff --git a/src/Ryujinx.HLE/HOS/Kernel/Threading/ThreadSchedState.cs b/src/Ryujinx.HLE/HOS/Kernel/Threading/ThreadSchedState.cs
index 9577075c0..1d09e021e 100644
--- a/src/Ryujinx.HLE/HOS/Kernel/Threading/ThreadSchedState.cs
+++ b/src/Ryujinx.HLE/HOS/Kernel/Threading/ThreadSchedState.cs
@@ -1,5 +1,8 @@
+using System;
+
 namespace Ryujinx.HLE.HOS.Kernel.Threading
 {
+    [Flags]
     enum ThreadSchedState : ushort
     {
         LowMask        = 0xf,