diff --git a/src/main/java/fastily/jwiki/core/MQuery.java b/src/main/java/fastily/jwiki/core/MQuery.java
index 8f6261a..fc273a9 100644
--- a/src/main/java/fastily/jwiki/core/MQuery.java
+++ b/src/main/java/fastily/jwiki/core/MQuery.java
@@ -456,8 +456,7 @@ public static HashMap<String, ArrayList<String>> getDuplicatesOf(Wiki wiki, bool
 
 	/**
 	 * Gets shared (non-local) duplicates of a file. PRECONDITION: The Wiki this query is run against has the
-	 * <a href="https://www.mediawiki.org/wiki/Extension:GlobalUsage">GlobalUsage</a> extension installed. Note that
-	 * results are returned *without* a namespace prefix.
+	 * <a href="https://www.mediawiki.org/wiki/Extension:GlobalUsage">GlobalUsage</a> extension installed.
 	 * 
 	 * @param wiki The wiki object to use
 	 * @param titles The titles to query
@@ -469,7 +468,7 @@ public static HashMap<String, ArrayList<String>> getSharedDuplicatesOf(Wiki wiki
 				getContProp(wiki, titles, WQuery.DUPLICATEFILES, null, "duplicatefiles"), "name", "shared");
 
 		HashMap<String, ArrayList<String>> l = new HashMap<>();
-		xl.forEach((k, v) -> l.put(k, FL.toAL(v.stream().filter(t -> t.y != null).map(t -> t.x.replace('_', ' ')))));
+		xl.forEach((k, v) -> l.put(k, FL.toAL(v.stream().filter(t -> t.y != null).map(t -> wiki.convertIfNotInNS(t.x.replace('_', ' '), NS.FILE)))));
 		return l;
 	}
 
diff --git a/src/main/java/fastily/jwiki/core/Wiki.java b/src/main/java/fastily/jwiki/core/Wiki.java
index 9d1be80..3165cb7 100644
--- a/src/main/java/fastily/jwiki/core/Wiki.java
+++ b/src/main/java/fastily/jwiki/core/Wiki.java
@@ -994,8 +994,7 @@ public ArrayList<Revision> getRevisions(String title, int cap, boolean olderFirs
 
 	/**
 	 * Gets the shared (non-local) duplicates of a file. PRECONDITION: The Wiki this query is run against has the
-	 * <a href="https://www.mediawiki.org/wiki/Extension:GlobalUsage">GlobalUsage</a> extension installed. Note that
-	 * results are returned *without* a namespace prefix.
+	 * <a href="https://www.mediawiki.org/wiki/Extension:GlobalUsage">GlobalUsage</a> extension installed.
 	 * 
 	 * @param title The title of the file to query
 	 * @return An ArrayList containing shared duplicates of the file
diff --git a/src/test/java/fastily/jwiki/test/MockQueryTests.java b/src/test/java/fastily/jwiki/test/MockQueryTests.java
index 7c6d372..0f22969 100644
--- a/src/test/java/fastily/jwiki/test/MockQueryTests.java
+++ b/src/test/java/fastily/jwiki/test/MockQueryTests.java
@@ -220,4 +220,19 @@ public void testSearch()
 		assertTrue(l.contains("Git"));
 		assertTrue(l.contains("GitHub Pages"));
 	}
+
+	/**
+	 * Tests fetching of shared duplicate files
+	 */
+	@Test
+	public void testGetSharedDuplicateOf()
+	{
+		addResponse("mockSharedDuplicateFiles");
+
+		ArrayList<String> l = wiki.getSharedDuplicatesOf("File:Test.jpg");
+
+		assertEquals(1, l.size());
+		assertTrue(l.contains("File:TestTest.jpg"));
+	}
+
 }
\ No newline at end of file
diff --git a/src/test/resources/fastily/jwiki/test/mockSharedDuplicateFiles.json b/src/test/resources/fastily/jwiki/test/mockSharedDuplicateFiles.json
new file mode 100644
index 0000000..84c54bb
--- /dev/null
+++ b/src/test/resources/fastily/jwiki/test/mockSharedDuplicateFiles.json
@@ -0,0 +1,25 @@
+{
+    "batchcomplete": "",
+    "query": {
+        "pages": {
+            "111111": {
+                "pageid": 111111,
+                "ns": 6,
+                "title": "File:Test.jpg",
+                "duplicatefiles": [
+                    {
+                        "name": "TestTest.jpg",
+                        "user": "Foo",
+                        "timestamp": "2018-03-03T21:03:22Z",
+                        "shared": ""
+                    },
+                    {
+                        "name": "LocalOnlyDuplicate.jpg",
+                        "user": "Foo",
+                        "timestamp": "2018-03-03T21:03:22Z"
+                    }
+                ]
+            }
+        }
+    }
+}
\ No newline at end of file