diff --git a/src/algorithms/acquisition/adapters/galileo_e5a_pcps_acquisition.h b/src/algorithms/acquisition/adapters/galileo_e5a_pcps_acquisition.h
index abef41b5f..75f1fa91b 100644
--- a/src/algorithms/acquisition/adapters/galileo_e5a_pcps_acquisition.h
+++ b/src/algorithms/acquisition/adapters/galileo_e5a_pcps_acquisition.h
@@ -174,7 +174,7 @@ private:
     std::weak_ptr<ChannelFsm> channel_fsm_;
     unsigned int doppler_max_;
     unsigned int doppler_step_;
-    unsigned int doppler_center_;
+    int doppler_center_;
     unsigned int sampled_ms_;
     unsigned int max_dwells_;
     unsigned int in_streams_;
diff --git a/src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition.h b/src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition.h
index f3eaff714..0f3372a7d 100644
--- a/src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition.h
+++ b/src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition.h
@@ -184,7 +184,7 @@ private:
     float threshold_;
     unsigned int doppler_max_;
     unsigned int doppler_step_;
-    unsigned int doppler_center_;
+    int doppler_center_;
     unsigned int sampled_ms_;
     unsigned int max_dwells_;
     int64_t fs_in_;
diff --git a/src/algorithms/acquisition/adapters/gps_l2_m_pcps_acquisition.h b/src/algorithms/acquisition/adapters/gps_l2_m_pcps_acquisition.h
index 268b1f3f3..bde265550 100644
--- a/src/algorithms/acquisition/adapters/gps_l2_m_pcps_acquisition.h
+++ b/src/algorithms/acquisition/adapters/gps_l2_m_pcps_acquisition.h
@@ -181,7 +181,7 @@ private:
     float threshold_;
     unsigned int doppler_max_;
     unsigned int doppler_step_;
-    unsigned int doppler_center_;
+    int doppler_center_;
     unsigned int max_dwells_;
     int64_t fs_in_;
     bool dump_;
diff --git a/src/algorithms/acquisition/adapters/gps_l5i_pcps_acquisition.h b/src/algorithms/acquisition/adapters/gps_l5i_pcps_acquisition.h
index a0191df2f..963638efb 100644
--- a/src/algorithms/acquisition/adapters/gps_l5i_pcps_acquisition.h
+++ b/src/algorithms/acquisition/adapters/gps_l5i_pcps_acquisition.h
@@ -181,7 +181,7 @@ private:
     float threshold_;
     unsigned int doppler_max_;
     unsigned int doppler_step_;
-    unsigned int doppler_center_;
+    int doppler_center_;
     unsigned int max_dwells_;
     int64_t fs_in_;
     bool dump_;