diff --git a/src/video_core/renderer_opengl/gl_shader_cache.h b/src/video_core/renderer_opengl/gl_shader_cache.h
index 44156dcab1..658f9e994b 100644
--- a/src/video_core/renderer_opengl/gl_shader_cache.h
+++ b/src/video_core/renderer_opengl/gl_shader_cache.h
@@ -30,7 +30,7 @@ public:
 
     /// Gets the size of the shader in guest memory, required for cache management
     size_t GetSizeInBytes() const {
-        return sizeof(GLShader::ProgramCode);
+        return GLShader::MAX_PROGRAM_CODE_LENGTH * sizeof(u64);
     }
 
     /// Gets the shader entries for the shader