diff --git a/cpp_src/dsp/lasp_rtaps.cpp b/cpp_src/dsp/lasp_rtaps.cpp
index 96d9802..7d16b84 100644
--- a/cpp_src/dsp/lasp_rtaps.cpp
+++ b/cpp_src/dsp/lasp_rtaps.cpp
@@ -37,7 +37,7 @@ void RtAps::inCallback(const DaqData &data) {
     cerr << "**** Error: sensitivity size does not match! *****" << endl;
     return;
   }
-  fltdata.each_row() %= _sens.as_row();
+  fltdata.each_row() /= _sens.as_row();
 
   if (_filterPrototype) {
 
diff --git a/pyproject.toml b/pyproject.toml
index c7aabce..8994601 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@ requires-python = ">=3.10"
 description = "Library for Acoustic Signal Processing"
 license = { "file" = "LICENSE" }
 authors = [{ "name" = "J.A. de Jong", "email" = "j.a.dejong@ascee.nl" }]
-version = "1.4.7"
+version = "1.4.8"
 
 keywords = ["DSP", "DAQ", "Signal processing"]