diff --git a/src/gallium/auxiliary/nir/tgsi_to_nir.c b/src/gallium/auxiliary/nir/tgsi_to_nir.c
index 152546272dd..a55f4604541 100644
--- a/src/gallium/auxiliary/nir/tgsi_to_nir.c
+++ b/src/gallium/auxiliary/nir/tgsi_to_nir.c
@@ -2341,6 +2341,9 @@ ttn_compile_init(const void *tgsi_tokens,
    BITSET_SET32(s->info.samplers_used, scan.samplers_declared);
    s->info.internal = false;
 
+   /* Default for TGSI is separate, this is assumed throughout the tree */
+   s->info.separate_shader = true;
+
    for (unsigned i = 0; i < TGSI_PROPERTY_COUNT; i++) {
       unsigned value = scan.properties[i];