diff --git a/core/libs/prx/libSceAgcDriver/tests/Graphics.cpp b/core/libs/prx/libSceAgcDriver/tests/Graphics.cpp
index 2d73e4a33..e03e6e2e6 100644
--- a/core/libs/prx/libSceAgcDriver/tests/Graphics.cpp
+++ b/core/libs/prx/libSceAgcDriver/tests/Graphics.cpp
@@ -3025,8 +3025,9 @@ void rectListTests() {
     queue.userConfig[0x242] = 17;
     const auto state = DecodeState(queue);
     const Context context{};
-    const auto drawFailure = [&](std::uint32_t count) {
-        const AgcDriver::Pm4::DrawParameters draw{0, count, 0, 1, 0, false};
+    std::array<std::uint16_t, 8> indices{};
+    const auto drawFailure = [&](std::uint32_t count, bool indexed) {
+        const AgcDriver::Pm4::DrawParameters draw = indexed ? AgcDriver::Pm4::DrawParameters{reinterpret_cast<std::uint64_t>(indices.data()), count, 2, 1, 0, true} : AgcDriver::Pm4::DrawParameters{0, count, 0, 1, 0, false};
         try {
             Draw(context, state, draw, {});
         } catch (const std::exception& error) {
@@ -3034,8 +3035,10 @@ void rectListTests() {
         }
         return std::string{};
     };
-    const auto complete = drawFailure(3);
-    for (const auto count : {4u, 5u}) Require(drawFailure(count) == complete, "a rect-list draw with a partial last rectangle was not drawn like its complete rectangles");
+    for (const auto indexed : {false, true}) {
+        const auto complete = drawFailure(3, indexed);
+        for (const auto count : {4u, 5u}) Require(drawFailure(count, indexed) == complete, "a rect-list draw with a partial last rectangle was not drawn like its complete rectangles");
+    }
 }
 
 ShaderRecompiler::RecompileResult recompilePixel(std::initializer_list<std::uint32_t> controls, std::span<const std::uint32_t> code) {