diff --git a/src/main/java/org/apache/maven/shared/artifact/filter/PatternIncludesArtifactFilter.java b/src/main/java/org/apache/maven/shared/artifact/filter/PatternIncludesArtifactFilter.java
index 4d212a9..e51f462 100644
--- a/src/main/java/org/apache/maven/shared/artifact/filter/PatternIncludesArtifactFilter.java
+++ b/src/main/java/org/apache/maven/shared/artifact/filter/PatternIncludesArtifactFilter.java
@@ -85,7 +85,7 @@ public PatternIncludesArtifactFilter(final Collection<String> patterns, final bo
         this.actTransitively = actTransitively;
         final Set<Pattern> pat = new LinkedHashSet<>();
         if (patterns != null && !patterns.isEmpty()) {
-            for (String pattern : patterns) {
+            for (String pattern : new LinkedHashSet<>(patterns)) {
                 Pattern p = compile(pattern);
                 pat.add(p);
             }
diff --git a/src/test/java/org/apache/maven/shared/artifact/filter/AbstractPatternArtifactFilterTest.java b/src/test/java/org/apache/maven/shared/artifact/filter/AbstractPatternArtifactFilterTest.java
index 724fb05..fa22d81 100644
--- a/src/test/java/org/apache/maven/shared/artifact/filter/AbstractPatternArtifactFilterTest.java
+++ b/src/test/java/org/apache/maven/shared/artifact/filter/AbstractPatternArtifactFilterTest.java
@@ -506,6 +506,23 @@ public void checkMassembly955() {
         }
     }
 
+    @Test
+    public void shouldNotReportDuplicateMatchingPatternsAsMissed() {
+        Artifact artifact = mock(Artifact.class);
+        when(artifact.getGroupId()).thenReturn("org.python");
+        when(artifact.getArtifactId()).thenReturn("jython-standalone");
+        when(artifact.getType()).thenReturn("jar");
+        when(artifact.getBaseVersion()).thenReturn("1.0");
+
+        String pattern = "org.python:jython-standalone";
+        ArtifactFilter filter = createFilter(Arrays.asList(pattern, pattern));
+        StatisticsReportingArtifactFilter statistics = (StatisticsReportingArtifactFilter) filter;
+
+        assertTrue(statistics.hasMissedCriteria());
+        filter.include(artifact);
+        assertFalse(statistics.hasMissedCriteria());
+    }
+
     @Test
     public void partialWildcardShouldNotMatchEmptyComponent() {
         Artifact artifact = mock(Artifact.class);