diff --git a/libs/vkd3d-shader/dxbc.c b/libs/vkd3d-shader/dxbc.c
index 99c32ae2..99a085f1 100644
--- a/libs/vkd3d-shader/dxbc.c
+++ b/libs/vkd3d-shader/dxbc.c
@@ -1647,10 +1647,10 @@ fail:
     return;
 }
 
-bool shader_sm4_is_end(void *data, const DWORD **ptr)
+bool shader_sm4_is_end(struct vkd3d_shader_parser *parser, const uint32_t **ptr)
 {
-    struct vkd3d_sm4_data *priv = data;
-    return *ptr == priv->end;
+    struct vkd3d_sm4_data *sm4 = parser->data;
+    return *ptr == sm4->end;
 }
 
 static bool require_space(size_t offset, size_t count, size_t size, size_t data_size)
diff --git a/libs/vkd3d-shader/glsl.c b/libs/vkd3d-shader/glsl.c
index 04d948c2..9824840f 100644
--- a/libs/vkd3d-shader/glsl.c
+++ b/libs/vkd3d-shader/glsl.c
@@ -104,7 +104,7 @@ int vkd3d_glsl_generator_generate(struct vkd3d_glsl_generator *generator,
     vkd3d_string_buffer_printf(&generator->buffer, "#version 440\n\n");
     vkd3d_string_buffer_printf(&generator->buffer, "void main()\n{\n");
 
-    while (!shader_sm4_is_end(parser->data, &parser->ptr))
+    while (!shader_sm4_is_end(parser, &parser->ptr))
     {
         shader_sm4_read_instruction(parser, &parser->ptr, &ins);
 
diff --git a/libs/vkd3d-shader/trace.c b/libs/vkd3d-shader/trace.c
index 3e2b1523..409ed550 100644
--- a/libs/vkd3d-shader/trace.c
+++ b/libs/vkd3d-shader/trace.c
@@ -1837,7 +1837,7 @@ enum vkd3d_result vkd3d_dxbc_binary_to_text(struct vkd3d_shader_parser *parser,
             shader_version->minor, compiler.colours.reset);
 
     indent = 0;
-    while (!shader_sm4_is_end(parser->data, &ptr))
+    while (!shader_sm4_is_end(parser, &ptr))
     {
         struct vkd3d_shader_instruction ins;
 
diff --git a/libs/vkd3d-shader/vkd3d_shader_main.c b/libs/vkd3d-shader/vkd3d_shader_main.c
index 56611772..b108fa65 100644
--- a/libs/vkd3d-shader/vkd3d_shader_main.c
+++ b/libs/vkd3d-shader/vkd3d_shader_main.c
@@ -954,7 +954,7 @@ static int scan_dxbc(const struct vkd3d_shader_compile_info *compile_info,
     if (TRACE_ON())
         vkd3d_shader_trace(&parser);
 
-    while (!shader_sm4_is_end(parser.data, &parser.ptr))
+    while (!shader_sm4_is_end(&parser, &parser.ptr))
     {
         shader_sm4_read_instruction(&parser, &parser.ptr, &instruction);
 
@@ -1085,7 +1085,7 @@ static int compile_dxbc_tpf(const struct vkd3d_shader_compile_info *compile_info
         return VKD3D_ERROR;
     }
 
-    while (!shader_sm4_is_end(parser.data, &parser.ptr))
+    while (!shader_sm4_is_end(&parser, &parser.ptr))
     {
         shader_sm4_read_instruction(&parser, &parser.ptr, &instruction);
 
diff --git a/libs/vkd3d-shader/vkd3d_shader_private.h b/libs/vkd3d-shader/vkd3d_shader_private.h
index 5e828b6f..6d044c51 100644
--- a/libs/vkd3d-shader/vkd3d_shader_private.h
+++ b/libs/vkd3d-shader/vkd3d_shader_private.h
@@ -895,7 +895,7 @@ void shader_sm4_read_header(struct vkd3d_shader_parser *parser,
         const uint32_t **ptr, struct vkd3d_shader_version *shader_version);
 void shader_sm4_read_instruction(struct vkd3d_shader_parser *parser,
         const uint32_t **ptr, struct vkd3d_shader_instruction *ins);
-bool shader_sm4_is_end(void *data, const DWORD **ptr);
+bool shader_sm4_is_end(struct vkd3d_shader_parser *parser, const uint32_t **ptr);
 
 struct vkd3d_string_buffer
 {