diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 00a4c08ce19..31d26e372b8 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -6029,7 +6029,7 @@ bool nir_lower_clamp_color_outputs(nir_shader *shader);
 
 bool nir_lower_flatshade(nir_shader *shader);
 
-void nir_lower_passthrough_edgeflags(nir_shader *shader);
+bool nir_lower_passthrough_edgeflags(nir_shader *shader);
 bool nir_lower_patch_vertices(nir_shader *nir, unsigned static_count,
                               const gl_state_index16 *uniform_state_tokens);
 
diff --git a/src/compiler/nir/nir_lower_passthrough_edgeflags.c b/src/compiler/nir/nir_lower_passthrough_edgeflags.c
index c178ea67852..9ae4e4244e0 100644
--- a/src/compiler/nir/nir_lower_passthrough_edgeflags.c
+++ b/src/compiler/nir/nir_lower_passthrough_edgeflags.c
@@ -89,7 +89,7 @@ lower_impl(nir_function_impl *impl)
                                   nir_metadata_dominance);
 }
 
-void
+bool
 nir_lower_passthrough_edgeflags(nir_shader *shader)
 {
    assert(shader->info.stage == MESA_SHADER_VERTEX);
@@ -97,4 +97,5 @@ nir_lower_passthrough_edgeflags(nir_shader *shader)
    shader->info.vs.needs_edge_flag = true;
 
    lower_impl(nir_shader_get_entrypoint(shader));
+   return true;
 }