diff --git a/protos/README.md b/protos/README.md
index b9106f02..3ac84af4 100644
--- a/protos/README.md
+++ b/protos/README.md
@@ -15,7 +15,9 @@ predicates have protobuf definitions:
 
 -   [SLSA Verification Summary]: SLSA verification decision about a software
     artifact.
--   [in-toto Link]: Generic predicate that records a software supply chain step
+-   [in-toto Link]: Generic predicate that records a software supply chain step.
+-   [Test Result]: Expresses the result of a test run in the software supply
+    chain.
 
 ## Supported language bindings
 
diff --git a/protos/in_toto_attestation/predicates/test_result/v0/test_result.proto b/protos/in_toto_attestation/predicates/test_result/v0/test_result.proto
new file mode 100644
index 00000000..54e53e58
--- /dev/null
+++ b/protos/in_toto_attestation/predicates/test_result/v0/test_result.proto
@@ -0,0 +1,23 @@
+
+syntax = "proto3";
+
+package in_toto_attestation.predicates.test_result.v0;
+
+import "in_toto_attestation/v1/resource_descriptor.proto";
+
+option go_package = "github.com/in-toto/attestation/go/predicates/test_result/v0";
+option java_package = "io.github.intoto.attestation.predicates.test_result.v0";
+
+message TestResult {
+    string result = 1;
+
+    repeated in_toto_attestation.v1.ResourceDescriptor configuration = 2;
+
+    string url = 3;
+
+    repeated string passed_tests = 4;
+
+    repeated string warned_tests = 5;
+
+    repeated string failed_tests = 6;
+}
diff --git a/spec/predicates/test-results.md b/spec/predicates/test-results.md
index 4ca53d7e..0b92bd70 100644
--- a/spec/predicates/test-results.md
+++ b/spec/predicates/test-results.md
@@ -1,4 +1,4 @@
-# Predicate type: Test Results
+# Predicate type: Test Result
 
 Type URI: https://in-toto.io/attestation/test-result/v0.1