diff --git a/src/compiler/nir/nir_lower_tex.c b/src/compiler/nir/nir_lower_tex.c
index 7a42bb339e7..511171da60d 100644
--- a/src/compiler/nir/nir_lower_tex.c
+++ b/src/compiler/nir/nir_lower_tex.c
@@ -1477,8 +1477,10 @@ nir_lower_tex_block(nir_block *block, nir_builder *b,
       /* Only fragment and compute (in some cases) support implicit
        * derivatives.  Lower those opcodes which use implicit derivatives to
        * use an explicit LOD of 0.
+       * But don't touch RECT samplers because they don't have mips.
        */
       if (nir_tex_instr_has_implicit_derivative(tex) &&
+          tex->sampler_dim != GLSL_SAMPLER_DIM_RECT &&
           !nir_shader_supports_implicit_lod(b->shader)) {
          lower_zero_lod(b, tex);
          progress = true;