diff --git a/src/main/java/hudson/plugins/copyartifact/TriggeredBuildSelector.java b/src/main/java/hudson/plugins/copyartifact/TriggeredBuildSelector.java
index cae2aefe..2a7ef8c3 100644
--- a/src/main/java/hudson/plugins/copyartifact/TriggeredBuildSelector.java
+++ b/src/main/java/hudson/plugins/copyartifact/TriggeredBuildSelector.java
@@ -25,6 +25,8 @@
 
 import hudson.EnvVars;
 import hudson.Extension;
+import hudson.matrix.MatrixConfiguration;
+import hudson.matrix.MatrixRun;
 import hudson.model.Descriptor;
 import hudson.model.Cause;
 import hudson.model.Cause.UpstreamCause;
@@ -50,8 +52,12 @@ public boolean isFallbackToLastSuccessful() {
     
     @Override
     public Run<?,?> getBuild(Job<?,?> job, EnvVars env, BuildFilter filter, Run<?,?> parent) {
-        String jobName = job.getFullName();
-        for (Cause cause : parent.getCauses()) {
+        // Upstream job for matrix will be parent project, not individual configuration:
+        String jobName = job instanceof MatrixConfiguration
+            ? job.getParent().getFullName() : job.getFullName();
+        // Matrix run is triggered by its parent project, so check causes of parent build:
+        for (Cause cause : parent instanceof MatrixRun
+                ? ((MatrixRun)parent).getParentBuild().getCauses() : parent.getCauses()) {
             if (cause instanceof UpstreamCause
                     && jobName.equals(((UpstreamCause)cause).getUpstreamProject())) {
                 Run<?,?> run = job.getBuildByNumber(((UpstreamCause)cause).getUpstreamBuild());
diff --git a/src/test/java/hudson/plugins/copyartifact/CopyArtifactTest.java b/src/test/java/hudson/plugins/copyartifact/CopyArtifactTest.java
index 65e62475..005b1db3 100644
--- a/src/test/java/hudson/plugins/copyartifact/CopyArtifactTest.java
+++ b/src/test/java/hudson/plugins/copyartifact/CopyArtifactTest.java
@@ -487,7 +487,7 @@ public void testPermalinkBuildSelector() throws Exception {
 
     public void testTriggeredBuildSelector() throws Exception {
         FreeStyleProject other = createArtifactProject(),
-        p = createFreeStyleProject();
+                         p = createFreeStyleProject();
         p.getBuildersList().add(new CopyArtifact(other.getName(),
                                     new TriggeredBuildSelector(false), "*.txt", "", false, false));
         other.getPublishersList().add(new BuildTrigger(p.getFullName(), false));
@@ -510,6 +510,51 @@ public void testTriggeredBuildSelector() throws Exception {
         assertBuildStatus(Result.SUCCESS, p.scheduleBuild2(0, new UserCause()).get());
     }
 
+    /**
+     * When copying from a particular matrix configuration, the upstream project
+     * is the matrix parent.
+     */
+    public void testTriggeredBuildSelectorFromMatrix() throws Exception {
+        MatrixProject other = createMatrixArtifactProject();
+        FreeStyleProject p = createFreeStyleProject();
+        p.getBuildersList().add(new CopyArtifact(other.getName() + "/FOO=two",
+                                    new TriggeredBuildSelector(false), "*.txt", "", false, false));
+        other.getPublishersList().add(new BuildTrigger(p.getFullName(), false));
+        hudson.rebuildDependencyGraph();
+        assertBuildStatusSuccess(other.scheduleBuild2(0, new UserCause()).get());
+        // p#1 was triggered, now building.
+        FreeStyleBuild b = p.getBuildByNumber(1);
+        for (int i = 0; b == null && i < 1000; i++) { Thread.sleep(10); b = p.getBuildByNumber(1); }
+        assertNotNull(b);
+        while (b.isBuilding()) Thread.sleep(10);
+        assertBuildStatusSuccess(b);
+        assertFile(true, "foo.txt", b);
+        assertFile(true, "two.txt", b);
+    }
+
+    /**
+     * When copying to a matrix job, need to check the upstream cause of the
+     * matrix parent.
+     */
+    public void testTriggeredBuildSelectorToMatrix() throws Exception {
+        FreeStyleProject other = createArtifactProject();
+        MatrixProject p = createMatrixProject();
+        p.setAxes(new AxisList(new Axis("FOO", "one", "two")));
+        p.getBuildersList().add(new CopyArtifact(other.getName(),
+                                    new TriggeredBuildSelector(false), "*.txt", "", false, false));
+        other.getPublishersList().add(new BuildTrigger(p.getFullName(), false));
+        hudson.rebuildDependencyGraph();
+        assertBuildStatusSuccess(other.scheduleBuild2(0, new UserCause()).get());
+        // p#1 was triggered, now building.
+        MatrixBuild b = p.getBuildByNumber(1);
+        for (int i = 0; b == null && i < 1000; i++) { Thread.sleep(10); b = p.getBuildByNumber(1); }
+        assertNotNull(b);
+        while (b.isBuilding()) Thread.sleep(10);
+        assertBuildStatusSuccess(b);
+        MatrixRun r = b.getRuns().get(0);
+        assertFile(true, "foo.txt", r);
+    }
+
     public void testFlatten() throws Exception {
         FreeStyleProject other = createArtifactProject(),
                          p = createProject(other.getName(), "", "newdir", false, true, false);