diff --git a/src/compiler/nir/nir_builder.h b/src/compiler/nir/nir_builder.h
index a16ece60e9a..381eebb52a3 100644
--- a/src/compiler/nir/nir_builder.h
+++ b/src/compiler/nir/nir_builder.h
@@ -1604,6 +1604,7 @@ nir_build_deref_follower(nir_builder *b, nir_deref_instr *parent,
    default:
       unreachable("Invalid deref instruction type");
    }
+   return NULL;
 }
 
 static inline nir_def *