diff --git a/src/algorithms/libs/galileo_e5_signal_processing.cc b/src/algorithms/libs/galileo_e5_signal_processing.cc
index c2cd93fcc..8753b9ca4 100644
--- a/src/algorithms/libs/galileo_e5_signal_processing.cc
+++ b/src/algorithms/libs/galileo_e5_signal_processing.cc
@@ -130,7 +130,7 @@ void galileo_e5_a_code_gen_complex_sampled(own::span<std::complex<float>> _dest,
 
 void galileo_e5_b_code_gen_complex_primary(own::span<std::complex<float>> _dest,
     int32_t _prn,
-    const std::array<char, 4>& _Signal)  // to differentiate between E5a and E5b signal
+    const std::array<char, 3>& _Signal)
 {
     uint32_t prn = _prn - 1;
     uint32_t index = 0;
@@ -139,7 +139,7 @@ void galileo_e5_b_code_gen_complex_primary(own::span<std::complex<float>> _dest,
         {
             return;
         }
-    if (_Signal[0] == '5' && _Signal[1] == 'b' && _Signal[2] == 'Q')
+    if (_Signal[0] == '5' && _Signal[1] == 'Q')
         {
             for (size_t i = 0; i < GALILEO_E5B_Q_PRIMARY_CODE[prn].length() - 1; i++)
                 {
@@ -154,8 +154,10 @@ void galileo_e5_b_code_gen_complex_primary(own::span<std::complex<float>> _dest,
             hex_to_binary_converter(a, GALILEO_E5B_Q_PRIMARY_CODE[prn][GALILEO_E5B_Q_PRIMARY_CODE[prn].length() - 1]);
             _dest[index] = std::complex<float>(static_cast<float>(a[0]), 0.0);
             _dest[index + 1] = std::complex<float>(static_cast<float>(a[1]), 0.0);
+            _dest[index + 2] = std::complex<float>(0.0, 0.0);
+            _dest[index + 3] = std::complex<float>(0.0, 0.0);
         }
-    else if (_Signal[0] == '5' && _Signal[1] == 'b' && _Signal[2] == 'I')
+    else if (_Signal[0] == '5' && _Signal[1] == 'I')
         {
             for (size_t i = 0; i < GALILEO_E5B_I_PRIMARY_CODE[prn].length() - 1; i++)
                 {
@@ -170,8 +172,10 @@ void galileo_e5_b_code_gen_complex_primary(own::span<std::complex<float>> _dest,
             hex_to_binary_converter(a, GALILEO_E5B_I_PRIMARY_CODE[prn][GALILEO_E5B_I_PRIMARY_CODE[prn].length() - 1]);
             _dest[index] = std::complex<float>(static_cast<float>(a[0]), 0.0);
             _dest[index + 1] = std::complex<float>(static_cast<float>(a[1]), 0.0);
+            _dest[index + 2] = std::complex<float>(0.0, 0.0);
+            _dest[index + 3] = std::complex<float>(0.0, 0.0);
         }
-    else if (_Signal[0] == '5' && _Signal[1] == 'b' && _Signal[2] == 'X')
+    else if (_Signal[0] == '5' && _Signal[1] == 'X')
         {
             std::array<int32_t, 4> b{};
             for (size_t i = 0; i < GALILEO_E5B_I_PRIMARY_CODE[prn].length() - 1; i++)
@@ -189,13 +193,15 @@ void galileo_e5_b_code_gen_complex_primary(own::span<std::complex<float>> _dest,
             hex_to_binary_converter(b, GALILEO_E5B_Q_PRIMARY_CODE[prn][GALILEO_E5B_Q_PRIMARY_CODE[prn].length() - 1]);
             _dest[index] = std::complex<float>(static_cast<float>(a[0]), static_cast<float>(b[0]));
             _dest[index + 1] = std::complex<float>(static_cast<float>(a[1]), static_cast<float>(b[1]));
+            _dest[index + 2] = std::complex<float>(0.0, 0.0);
+            _dest[index + 3] = std::complex<float>(0.0, 0.0);
         }
 }
 
 
 void galileo_e5_b_code_gen_complex_sampled(own::span<std::complex<float>> _dest,
     uint32_t _prn,
-    const std::array<char, 4>& _Signal,
+    const std::array<char, 3>& _Signal,
     int32_t _fs,
     uint32_t _chip_shift)
 {
diff --git a/src/algorithms/libs/galileo_e5_signal_processing.h b/src/algorithms/libs/galileo_e5_signal_processing.h
index ee8f6bc10..08426e878 100644
--- a/src/algorithms/libs/galileo_e5_signal_processing.h
+++ b/src/algorithms/libs/galileo_e5_signal_processing.h
@@ -59,7 +59,7 @@ void galileo_e5_a_code_gen_complex_sampled(own::span<std::complex<float>> _dest,
  */
 void galileo_e5_b_code_gen_complex_primary(own::span<std::complex<float>> _dest,
     int32_t _prn,
-    const std::array<char, 4>& _Signal);
+    const std::array<char, 3>& _Signal);
 
 
 /*!
@@ -68,7 +68,7 @@ void galileo_e5_b_code_gen_complex_primary(own::span<std::complex<float>> _dest,
  */
 void galileo_e5_b_code_gen_complex_sampled(own::span<std::complex<float>> _dest,
     uint32_t _prn,
-    const std::array<char, 4>& _Signal,
+    const std::array<char, 3>& _Signal,
     int32_t _fs,
     uint32_t _chip_shift);