diff --git a/Ryujinx.Graphics.Shader/CodeGen/Spirv/SpirvGenerator.cs b/Ryujinx.Graphics.Shader/CodeGen/Spirv/SpirvGenerator.cs
index 1cd965813..c74d6d30f 100644
--- a/Ryujinx.Graphics.Shader/CodeGen/Spirv/SpirvGenerator.cs
+++ b/Ryujinx.Graphics.Shader/CodeGen/Spirv/SpirvGenerator.cs
@@ -84,6 +84,12 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
 
             Generate(context, function.MainBlock);
 
+            // Functions must always end with a return.
+            if (!(function.MainBlock.Last is AstOperation operation) || operation.Inst != Instruction.Return)
+            {
+                context.Return();
+            }
+
             context.FunctionEnd();
 
             if (funcIndex == 0)