diff --git a/samples/android/tutorial-4-mixed/.project b/samples/android/tutorial-4-mixed/.project
index 84ac074a74edda03f59236cbeb5d04f3a20e37da..d5f34276852f325d554aad7ddb1c1e3614d73ddf 100644
--- a/samples/android/tutorial-4-mixed/.project
+++ b/samples/android/tutorial-4-mixed/.project
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>Tutorial 2 Advanced - 2. Mix Java\Native OpenCV</name>
+	<name>Tutorial 2 Advanced - 2. Mix Java+Native OpenCV</name>
 	<comment></comment>
 	<projects>
 	</projects>
diff --git a/samples/android/tutorial-4-mixed/res/values/strings.xml b/samples/android/tutorial-4-mixed/res/values/strings.xml
index 63b97c0113ed5988d8e02bf06f87fbf7f75c4882..428138a74177fc637e652d5a8c9dfb575ad9ca48 100644
--- a/samples/android/tutorial-4-mixed/res/values/strings.xml
+++ b/samples/android/tutorial-4-mixed/res/values/strings.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="app_name">Tutorial 2 Advanced - 2. Mix Java\Native OpenCV</string>
+    <string name="app_name">Tutorial 2 Advanced - 2. Mix Java+Native OpenCV</string>
 </resources>
diff --git a/samples/android/tutorial-4-mixed/src/org/opencv/samples/s4/Sample4Mixed.java b/samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/Sample4Mixed.java
similarity index 100%
rename from samples/android/tutorial-4-mixed/src/org/opencv/samples/s4/Sample4Mixed.java
rename to samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/Sample4Mixed.java
diff --git a/samples/android/tutorial-4-mixed/src/org/opencv/samples/s4/Sample4View.java b/samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/Sample4View.java
similarity index 100%
rename from samples/android/tutorial-4-mixed/src/org/opencv/samples/s4/Sample4View.java
rename to samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/Sample4View.java
diff --git a/samples/android/tutorial-4-mixed/src/org/opencv/samples/s4/SampleViewBase.java b/samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/SampleViewBase.java
similarity index 100%
rename from samples/android/tutorial-4-mixed/src/org/opencv/samples/s4/SampleViewBase.java
rename to samples/android/tutorial-4-mixed/src/org/opencv/samples/tutorial4/SampleViewBase.java