diff --git a/src/it/buildinfo-multi/pom.xml b/src/it/buildinfo-multi/pom.xml
index 0bf5e32..019be16 100644
--- a/src/it/buildinfo-multi/pom.xml
+++ b/src/it/buildinfo-multi/pom.xml
@@ -56,6 +56,18 @@
 
   <build>
     <plugins>
+      <plugin>
+        <groupId>org.spdx</groupId>
+        <artifactId>spdx-maven-plugin</artifactId>
+        <version>0.7.0</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>createSPDX</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
       <plugin>
         <groupId>@project.groupId@</groupId>
         <artifactId>@project.artifactId@</artifactId>
@@ -65,6 +77,11 @@
             <goals>
               <goal>buildinfo</goal>
             </goals>
+            <configuration>
+              <ignore>
+                <ignore>*/*.spdx.json</ignore>
+              </ignore>
+            </configuration>
           </execution>
         </executions>
       </plugin>
diff --git a/src/it/buildinfo-multi/verify.groovy b/src/it/buildinfo-multi/verify.groovy
index 81e47b1..7d5a3df 100644
--- a/src/it/buildinfo-multi/verify.groovy
+++ b/src/it/buildinfo-multi/verify.groovy
@@ -39,9 +39,11 @@ assert buildinfo.contains( "version=1.0-SNAPSHOT" )
 assert buildinfo.contains( "outputs.1.coordinates=org.apache.maven.plugins.it:multi-modA" )
 assert buildinfo.contains( "outputs.1.0.filename=multi-modA-1.0-SNAPSHOT.pom" )
 assert buildinfo.contains( "outputs.1.1.filename=multi-modA-1.0-SNAPSHOT.jar" )
+assert !buildinfo.contains( "outputs.1.2.filename=" )
 assert buildinfo.contains( "outputs.2.coordinates=org.apache.maven.plugins.it:multi-modB" )
 assert buildinfo.contains( "outputs.2.0.filename=multi-modB-1.0-SNAPSHOT.pom" )
 assert buildinfo.contains( "outputs.2.1.filename=multi-modB-1.0-SNAPSHOT.jar" )
+assert !buildinfo.contains( "outputs.2.2.filename=" )
 assert !buildinfo.contains( ".buildinfo" )
 assert buildinfo.contains( "mvn.aggregate.artifact-id=multi-modB" )
 
diff --git a/src/main/java/org/apache/maven/plugins/artifact/buildinfo/AbstractBuildinfoMojo.java b/src/main/java/org/apache/maven/plugins/artifact/buildinfo/AbstractBuildinfoMojo.java
index b7574dc..3c57eb4 100644
--- a/src/main/java/org/apache/maven/plugins/artifact/buildinfo/AbstractBuildinfoMojo.java
+++ b/src/main/java/org/apache/maven/plugins/artifact/buildinfo/AbstractBuildinfoMojo.java
@@ -29,7 +29,6 @@
 import java.util.Date;
 import java.util.List;
 import java.util.Map;
-import java.util.Set;
 
 import org.apache.maven.archiver.MavenArchiver;
 import org.apache.maven.artifact.Artifact;
@@ -79,10 +78,10 @@ public abstract class AbstractBuildinfoMojo extends AbstractMojo {
     private boolean ignoreJavadoc;
 
     /**
-     * Artifacts to ignore, specified as <code>extension</code> or <code>classifier.extension</code>.
+     * Artifacts to ignore, specified as a glob matching against {@code groupId/filename}.
      */
     @Parameter(property = "buildinfo.ignore", defaultValue = "")
-    private Set<String> ignore;
+    private List<String> ignore;
 
     /**
      * Detect projects/modules with install or deploy skipped: avoid taking fingerprints.
diff --git a/src/main/java/org/apache/maven/plugins/artifact/buildinfo/BuildInfoWriter.java b/src/main/java/org/apache/maven/plugins/artifact/buildinfo/BuildInfoWriter.java
index cb3d46d..5e731b1 100644
--- a/src/main/java/org/apache/maven/plugins/artifact/buildinfo/BuildInfoWriter.java
+++ b/src/main/java/org/apache/maven/plugins/artifact/buildinfo/BuildInfoWriter.java
@@ -22,14 +22,9 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.PrintWriter;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.nio.file.StandardCopyOption;
-import java.util.LinkedHashMap;
-import java.util.Map;
-import java.util.Properties;
-import java.util.Set;
+import java.nio.file.*;
+import java.util.*;
+import java.util.stream.Collectors;
 
 import org.apache.commons.codec.digest.DigestUtils;
 import org.apache.maven.artifact.Artifact;
@@ -55,7 +50,7 @@ class BuildInfoWriter {
     private final Map<Artifact, String> artifacts = new LinkedHashMap<>();
     private int projectCount = -1;
     private boolean ignoreJavadoc = true;
-    private Set<String> ignore;
+    private List<PathMatcher> ignore;
     private Toolchain toolchain;
 
     BuildInfoWriter(
@@ -223,6 +218,7 @@ void printArtifacts(MavenProject project) throws MojoExecutionException {
                 continue;
             }
             if (isIgnore(attached)) {
+                // TODO keep track of ignored attachments
                 continue;
             }
             printArtifact(prefix, n++, attached);
@@ -317,15 +313,14 @@ void setIgnoreJavadoc(boolean ignoreJavadoc) {
         this.ignoreJavadoc = ignoreJavadoc;
     }
 
-    void setIgnore(Set<String> ignore) {
-        this.ignore = ignore;
+    void setIgnore(List<String> ignore) {
+        FileSystem fs = FileSystems.getDefault();
+        this.ignore = ignore.stream().map(i -> fs.getPathMatcher("glob:" + i)).collect(Collectors.toList());
     }
 
     private boolean isIgnore(Artifact attached) {
-        String classifier = attached.getClassifier();
-        String extension = attached.getType();
-        String search = (classifier == null) ? "" : (classifier + '.') + extension;
-        return ignore.contains(search);
+        Path path = Paths.get(attached.getGroupId() + '/' + getArtifactFilename(attached));
+        return ignore.stream().anyMatch(m -> m.matches(path));
     }
 
     public void setToolchain(Toolchain toolchain) {