diff --git a/maven-wrapper/mvnw b/maven-wrapper/mvnw
index e13f6777fc..9b59d0622a 100755
--- a/maven-wrapper/mvnw
+++ b/maven-wrapper/mvnw
@@ -245,6 +245,10 @@ else
           echo "Falling back to using Java to download"
         fi
         javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
         if [ -e "$javaClass" ]; then
             if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
                 if [ "$MVNW_VERBOSE" = true ]; then