diff --git a/dlls/wined3d/context_gl.c b/dlls/wined3d/context_gl.c
index b327b7bba8e..3c57bcbe249 100644
--- a/dlls/wined3d/context_gl.c
+++ b/dlls/wined3d/context_gl.c
@@ -2828,7 +2828,8 @@ void wined3d_context_gl_copy_bo_address(struct wined3d_context_gl *context_gl,
             GL_EXTCALL(glBindBuffer(GL_COPY_READ_BUFFER, src_bo->id));
             GL_EXTCALL(glBindBuffer(GL_COPY_WRITE_BUFFER, dst_bo->id));
             GL_EXTCALL(glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER,
-                    (GLintptr)src->addr, (GLintptr)dst->addr, size));
+                    src_bo->b.buffer_offset + (GLintptr)src->addr,
+                    dst_bo->b.buffer_offset + (GLintptr)dst->addr, size));
             checkGLcall("direct buffer copy");
 
             wined3d_context_gl_reference_bo(context_gl, src_bo);
@@ -2850,7 +2851,7 @@ void wined3d_context_gl_copy_bo_address(struct wined3d_context_gl *context_gl,
     else if (!dst_bo && src_bo)
     {
         wined3d_context_gl_bind_bo(context_gl, src_bo->binding, src_bo->id);
-        GL_EXTCALL(glGetBufferSubData(src_bo->binding, (GLintptr)src->addr, size, dst->addr));
+        GL_EXTCALL(glGetBufferSubData(src_bo->binding, src_bo->b.buffer_offset + (GLintptr)src->addr, size, dst->addr));
         checkGLcall("buffer download");
 
         wined3d_context_gl_reference_bo(context_gl, src_bo);
@@ -2858,7 +2859,7 @@ void wined3d_context_gl_copy_bo_address(struct wined3d_context_gl *context_gl,
     else if (dst_bo && !src_bo)
     {
         wined3d_context_gl_bind_bo(context_gl, dst_bo->binding, dst_bo->id);
-        GL_EXTCALL(glBufferSubData(dst_bo->binding, (GLintptr)dst->addr, size, src->addr));
+        GL_EXTCALL(glBufferSubData(dst_bo->binding, dst_bo->b.buffer_offset + (GLintptr)dst->addr, size, src->addr));
         checkGLcall("buffer upload");
 
         wined3d_context_gl_reference_bo(context_gl, dst_bo);