diff --git a/sdk/android/src/jni/nv12buffer.cc b/sdk/android/src/jni/nv12buffer.cc
index 5f7edc85cf..23b1791ef9 100644
--- a/sdk/android/src/jni/nv12buffer.cc
+++ b/sdk/android/src/jni/nv12buffer.cc
@@ -62,7 +62,7 @@ static void JNI_NV12Buffer_CropAndScale(JNIEnv* jni,
 
   // Crop using pointer arithmetic.
   src_y += crop_x + crop_y * src_stride_y;
-  src_uv += crop_chroma_x + crop_chroma_y * src_stride_uv;
+  src_uv += 2 * crop_chroma_x + crop_chroma_y * src_stride_uv;
 
   std::vector<uint8_t> tmp_buffer(tmp_size);
   uint8_t* tmp_u = tmp_buffer.data();
diff --git a/sdk/android/src/jni/nv21buffer.cc b/sdk/android/src/jni/nv21buffer.cc
index c8a3a8b749..7f11488def 100644
--- a/sdk/android/src/jni/nv21buffer.cc
+++ b/sdk/android/src/jni/nv21buffer.cc
@@ -63,7 +63,7 @@ static void JNI_NV21Buffer_CropAndScale(JNIEnv* jni,
 
   // Crop using pointer arithmetic.
   src_y += crop_x + crop_y * src_stride_y;
-  src_uv += crop_chroma_x + crop_chroma_y * src_stride_uv;
+  src_uv += 2 * crop_chroma_x + crop_chroma_y * src_stride_uv;
 
   NV12ToI420Scaler scaler;
   // U- and V-planes are swapped because this is NV21 not NV12.