diff --git a/core/libs/prx/libSceAgcDriver/Graphics/src/Pipeline.cpp b/core/libs/prx/libSceAgcDriver/Graphics/src/Pipeline.cpp
index d4fbfec76..27bfd7ee9 100644
--- a/core/libs/prx/libSceAgcDriver/Graphics/src/Pipeline.cpp
+++ b/core/libs/prx/libSceAgcDriver/Graphics/src/Pipeline.cpp
@@ -186,6 +186,8 @@ bool libraryKeys(PipelineLibraryKeys& keys, const Context& context, const State&
     appendKey(keys.preRasterization, state.depth.has_value() && state.depthBias);
     appendKey(keys.preRasterization, state.stages.tessellation.has_value());
     if (state.stages.tessellation) appendKey(keys.preRasterization, state.stages.tessellation->inputControlPoints);
+    appendKey(keys.fragmentShader, state.samples);
+    appendKey(keys.fragmentOutput, state.samples);
     for (const auto& blend : state.blends) appendKey(keys.fragmentOutput, blend);
     for (const auto value : state.blendConstants) appendKey(keys.fragmentOutput, value);
     appendKey(keys.renderPass, state.blends.size());
diff --git a/core/libs/prx/libSceAgcDriver/tests/Recorder.cpp b/core/libs/prx/libSceAgcDriver/tests/Recorder.cpp
index 0c7912500..15f75e4de 100644
--- a/core/libs/prx/libSceAgcDriver/tests/Recorder.cpp
+++ b/core/libs/prx/libSceAgcDriver/tests/Recorder.cpp
@@ -5040,6 +5040,13 @@ void pipelineLibraryTests(const Device& device) {
     state.colors.front().format = VK_FORMAT_R16G16B16A16_SFLOAT;
     static_cast<void>(lookup());
     Require(counters().built == std::array<std::uint64_t, 4>{2, 2, 3, 3}, "another target format rebuilt more than the fragment output library");
+    state.samples = 4;
+    state.colors.front().samples = 4;
+    const auto multisampled = lookup();
+    Require(counters().built == std::array<std::uint64_t, 4>{2, 2, 4, 4}, "a 4x pipeline shared the 1x fragment shader or fragment output library");
+    state.samples = 1;
+    state.colors.front().samples = 1;
+    Require(lookup() != multisampled && counters().built == std::array<std::uint64_t, 4>{2, 2, 4, 4}, "the 1x pipeline after a 4x one built its libraries again");
     WaitForOptimizedPipelines(context.device);
     const auto lto = std::getenv("APS5_NO_PIPELINE_LTO") == nullptr && context.pipelineLinkTimeOptimization;
     Require(counters().optimized == (lto ? counters().linked : 0u), "a linked pipeline was not optimized in the background");