diff --git a/jni/feature_mos_jni.cpp b/jni/feature_mos_jni.cpp
index e40b75a..c2dcabf 100644
--- a/jni/feature_mos_jni.cpp
+++ b/jni/feature_mos_jni.cpp
@@ -366,7 +366,7 @@
 {
     double  t0, t1, time_c;
     t0 = now_ms();
-    int ret_code;
+    int ret_code = 0;
 
     if(frame_number_HR<MAX_FRAMES && frame_number_LR<MAX_FRAMES)
     {