diff --git a/src/main/org/apache/tools/ant/DirectoryScanner.java b/src/main/org/apache/tools/ant/DirectoryScanner.java
index 6c63bc57d..6061e4684 100644
--- a/src/main/org/apache/tools/ant/DirectoryScanner.java
+++ b/src/main/org/apache/tools/ant/DirectoryScanner.java
@@ -66,6 +66,7 @@ import org.apache.tools.ant.types.selectors.FileSelector;
 import org.apache.tools.ant.types.selectors.SelectorScanner;
 import org.apache.tools.ant.types.selectors.SelectorUtils;
 import org.apache.tools.ant.util.FileUtils;
+import org.apache.tools.ant.taskdefs.condition.Os;
 
 /**
  * Class for scanning a directory for files/directories which match certain
@@ -694,6 +695,22 @@ public class DirectoryScanner
             String currentelement = (String) enum2.nextElement();
             String originalpattern = (String) newroots.get(currentelement);
             File myfile = new File(basedir, currentelement);
+            // we need to call getCanonicalFile here for DOS systems
+            // the reason being that otherwise File will be influenced
+            // by the case of currentelement, which we want to avoid
+            if (Os.isFamily("dos") && myfile.exists()) {
+                try {
+                    // getAbsoluteFile() is not enough here unfortunately
+                    myfile = myfile.getCanonicalFile();
+                }
+                catch (Exception ex) {
+                    throw new BuildException(ex);
+                }
+                // the variable currentelement is actually telling what
+                // the scan results will contain
+                currentelement = fileUtils.removeLeadingPath(basedir,
+                                                             myfile);
+            }
             if (!myfile.exists() && !isCaseSensitive) {
                 File f = findFileCaseInsensitive(basedir, currentelement);
                 if (f.exists()) {
diff --git a/src/testcases/org/apache/tools/ant/DirectoryScannerTest.java b/src/testcases/org/apache/tools/ant/DirectoryScannerTest.java
index 1dee32b3f..ae81e228d 100644
--- a/src/testcases/org/apache/tools/ant/DirectoryScannerTest.java
+++ b/src/testcases/org/apache/tools/ant/DirectoryScannerTest.java
@@ -120,11 +120,7 @@ public class DirectoryScannerTest extends BuildFileTest {
         ds.setBasedir(new File(getProject().getBaseDir(), "tmp"));
         ds.setIncludes(new String[] {"alpha/beta/gamma/GAMMA.XML"});
         ds.scan();
-        if (Os.isFamily("dos")) {
-            compareFiles(ds, new String[] {"alpha/beta/gamma/GAMMA.XML"}, new String[] {});
-        } else {
-            compareFiles(ds, new String[] {}, new String[] {});
-        }
+        compareFiles(ds, new String[] {}, new String[] {});
     }
 
     public void testFullPathMatchesCaseInsensitive() {
@@ -133,13 +129,8 @@ public class DirectoryScannerTest extends BuildFileTest {
         ds.setBasedir(new File(getProject().getBaseDir(), "tmp"));
         ds.setIncludes(new String[] {"alpha/beta/gamma/GAMMA.XML"});
         ds.scan();
-        if (Os.isFamily("dos")) {
-            compareFiles(ds, new String[] {"alpha/beta/gamma/GAMMA.XML"},
-                         new String[] {});
-        } else {
-            compareFiles(ds, new String[] {"alpha/beta/gamma/gamma.xml"},
-                         new String[] {});
-        }
+        compareFiles(ds, new String[] {"alpha/beta/gamma/gamma.xml"},
+            new String[] {});
     }
 
     public void test2ButCaseInsesitive() {
@@ -148,15 +139,9 @@ public class DirectoryScannerTest extends BuildFileTest {
         ds.setIncludes(new String[] {"ALPHA/"});
         ds.setCaseSensitive(false);
         ds.scan();
-        if (Os.isFamily("dos")) {
-            compareFiles(ds, new String[] {"ALPHA/beta/beta.xml",
-                                           "ALPHA/beta/gamma/gamma.xml"},
-                         new String[] {"ALPHA", "ALPHA/beta", "ALPHA/beta/gamma"});
-        }  else {
         compareFiles(ds, new String[] {"alpha/beta/beta.xml",
                                        "alpha/beta/gamma/gamma.xml"},
                      new String[] {"alpha", "alpha/beta", "alpha/beta/gamma"});
-        }
     }
 
     public void testAllowSymlinks() {