diff --git a/src/dawn_native/CommandBufferStateTracker.cpp b/src/dawn_native/CommandBufferStateTracker.cpp
index 9d64934..17a9b61 100644
--- a/src/dawn_native/CommandBufferStateTracker.cpp
+++ b/src/dawn_native/CommandBufferStateTracker.cpp
@@ -245,11 +245,20 @@
 
             RenderPipelineBase* lastRenderPipeline = GetRenderPipeline();
             wgpu::IndexFormat pipelineIndexFormat = lastRenderPipeline->GetStripIndexFormat();
-            DAWN_INVALID_IF(
-                IsStripPrimitiveTopology(lastRenderPipeline->GetPrimitiveTopology()) &&
+
+            if (IsStripPrimitiveTopology(lastRenderPipeline->GetPrimitiveTopology())) {
+                DAWN_INVALID_IF(
+                    pipelineIndexFormat == wgpu::IndexFormat::Undefined,
+                    "%s has a strip primitive topology (%s) but a strip index format of %s, which "
+                    "prevents it for being used for indexed draw calls.",
+                    lastRenderPipeline, lastRenderPipeline->GetPrimitiveTopology(),
+                    pipelineIndexFormat);
+
+                DAWN_INVALID_IF(
                     mIndexFormat != pipelineIndexFormat,
-                "Strip index format (%s) of %s does not match index buffer format (%s).",
-                pipelineIndexFormat, lastRenderPipeline, mIndexFormat);
+                    "Strip index format (%s) of %s does not match index buffer format (%s).",
+                    pipelineIndexFormat, lastRenderPipeline, mIndexFormat);
+            }
 
             // The chunk of code above should be similar to the one in |RecomputeLazyAspects|.
             // It returns the first invalid state found. We shouldn't be able to reach this line
diff --git a/src/dawn_native/RenderPipeline.cpp b/src/dawn_native/RenderPipeline.cpp
index 7b0884d..fb9ad467 100644
--- a/src/dawn_native/RenderPipeline.cpp
+++ b/src/dawn_native/RenderPipeline.cpp
@@ -248,14 +248,9 @@
             DAWN_TRY(ValidateFrontFace(descriptor->frontFace));
             DAWN_TRY(ValidateCullMode(descriptor->cullMode));
 
-            // Pipeline descriptors must have stripIndexFormat != undefined IFF they are using strip
-            // topologies.
-            if (IsStripPrimitiveTopology(descriptor->topology)) {
-                DAWN_INVALID_IF(
-                    descriptor->stripIndexFormat == wgpu::IndexFormat::Undefined,
-                    "StripIndexFormat is undefined when using a strip primitive topology (%s).",
-                    descriptor->topology);
-            } else {
+            // Pipeline descriptors must have stripIndexFormat == undefined if they are using
+            // non-strip topologies.
+            if (!IsStripPrimitiveTopology(descriptor->topology)) {
                 DAWN_INVALID_IF(
                     descriptor->stripIndexFormat != wgpu::IndexFormat::Undefined,
                     "StripIndexFormat (%s) is not undefined when using a non-strip primitive "
diff --git a/src/tests/unittests/validation/IndexBufferValidationTests.cpp b/src/tests/unittests/validation/IndexBufferValidationTests.cpp
index d1d62b3..7c05e96 100644
--- a/src/tests/unittests/validation/IndexBufferValidationTests.cpp
+++ b/src/tests/unittests/validation/IndexBufferValidationTests.cpp
@@ -155,6 +155,8 @@
                                                        wgpu::PrimitiveTopology::TriangleStrip);
     wgpu::RenderPipeline pipeline16 = MakeTestPipeline(wgpu::IndexFormat::Uint16,
                                                        wgpu::PrimitiveTopology::LineStrip);
+    wgpu::RenderPipeline pipelineUndef =
+        MakeTestPipeline(wgpu::IndexFormat::Undefined, wgpu::PrimitiveTopology::LineStrip);
 
     wgpu::Buffer indexBuffer =
         utils::CreateBufferFromData<uint32_t>(device, wgpu::BufferUsage::Index, {0, 1, 2});
@@ -196,6 +198,31 @@
         encoder.DrawIndexed(3);
         encoder.Finish();
     }
+
+    // Expected to fail because pipeline doesn't specify an index format.
+    {
+        wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
+        encoder.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint16);
+        encoder.SetPipeline(pipelineUndef);
+        encoder.DrawIndexed(3);
+        ASSERT_DEVICE_ERROR(encoder.Finish());
+    }
+
+    {
+        wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
+        encoder.SetIndexBuffer(indexBuffer, wgpu::IndexFormat::Uint32);
+        encoder.SetPipeline(pipelineUndef);
+        encoder.DrawIndexed(3);
+        ASSERT_DEVICE_ERROR(encoder.Finish());
+    }
+
+    // Expected to succeed because non-indexed draw calls don't require a pipeline index format.
+    {
+        wgpu::RenderBundleEncoder encoder = device.CreateRenderBundleEncoder(&renderBundleDesc);
+        encoder.SetPipeline(pipelineUndef);
+        encoder.Draw(3);
+        encoder.Finish();
+    }
 }
 
 // Check that the index buffer must have the Index usage.
diff --git a/src/tests/unittests/validation/RenderPipelineValidationTests.cpp b/src/tests/unittests/validation/RenderPipelineValidationTests.cpp
index 2af96d2..009c187 100644
--- a/src/tests/unittests/validation/RenderPipelineValidationTests.cpp
+++ b/src/tests/unittests/validation/RenderPipelineValidationTests.cpp
@@ -727,8 +727,8 @@
     ASSERT_DEVICE_ERROR(device.CreateRenderPipeline(&descriptor));
 }
 
-// Tests that strip primitive topologies require an index format
-TEST_F(RenderPipelineValidationTest, StripIndexFormatRequired) {
+// Tests that only strip primitive topologies allow an index format
+TEST_F(RenderPipelineValidationTest, StripIndexFormatAllowed) {
     constexpr uint32_t kNumStripType = 2u;
     constexpr uint32_t kNumListType = 3u;
     constexpr uint32_t kNumIndexFormat = 3u;
@@ -751,14 +751,8 @@
             descriptor.primitive.topology = primitiveTopology;
             descriptor.primitive.stripIndexFormat = indexFormat;
 
-            if (indexFormat == wgpu::IndexFormat::Undefined) {
-                // Fail because the index format is undefined and the primitive
-                // topology is a strip type.
-                ASSERT_DEVICE_ERROR(device.CreateRenderPipeline(&descriptor));
-            } else {
-                // Succeeds because the index format is given.
-                device.CreateRenderPipeline(&descriptor);
-            }
+            // Always succeeds, regardless of if an index format is given.
+            device.CreateRenderPipeline(&descriptor);
         }
     }