diff --git a/src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking_fpga.cc b/src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking_fpga.cc
index c93ee9906..bb5596e55 100644
--- a/src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking_fpga.cc
+++ b/src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking_fpga.cc
@@ -1860,8 +1860,8 @@ int dll_pll_veml_tracking_fpga::general_work(int noutput_items __attribute__((un
                         // this must be computed for the secondary prn code
                         if (d_secondary)
                             {
-                                uint32_t first_prn_length = d_current_integration_length_samples - (d_fpga_integration_period - 1) * static_cast<int32_t>(std::floor(T_prn_samples));
-                                uint32_t next_prn_length = static_cast<int32_t>(std::floor(T_prn_samples));
+                            	uint32_t next_prn_length = d_current_integration_length_samples/d_fpga_integration_period;
+                            	uint32_t first_prn_length = d_current_integration_length_samples - next_prn_length*(d_fpga_integration_period - 1);
 
                                 multicorrelator_fpga->update_prn_code_length(first_prn_length, next_prn_length);
                             }
@@ -1913,8 +1913,8 @@ int dll_pll_veml_tracking_fpga::general_work(int noutput_items __attribute__((un
                         // this must be computed for the secondary prn code
                         if (d_secondary)
                             {
-                                uint32_t first_prn_length = d_current_integration_length_samples - (d_fpga_integration_period - 1) * static_cast<int32_t>(std::floor(T_prn_samples));
-                                uint32_t next_prn_length = static_cast<int32_t>(std::floor(T_prn_samples));
+                            	uint32_t next_prn_length = d_current_integration_length_samples/d_fpga_integration_period;
+                            	uint32_t first_prn_length = d_current_integration_length_samples - next_prn_length*(d_fpga_integration_period - 1);
 
                                 multicorrelator_fpga->update_prn_code_length(first_prn_length, next_prn_length);
                             }