diff --git a/src/filewriter.cpp b/src/filewriter.cpp
index bce7c0763835ca3c9220605393de221f3fc59968..d5fa7ccd27d04cfca610210686d0ce4a65839b5a 100644
--- a/src/filewriter.cpp
+++ b/src/filewriter.cpp
@@ -254,7 +254,7 @@ void IMUFileWriter::write(uint8_t *sample, size_t size, uint8_t *imu_data) {
                     break;
             }
         }
-        //
+        imu_data_cur += frame_size;
     }
 }