diff --git a/src/algorithms/PVT/libs/kml_printer.cc b/src/algorithms/PVT/libs/kml_printer.cc
index dee5d6c7a..ad7ccb0e3 100644
--- a/src/algorithms/PVT/libs/kml_printer.cc
+++ b/src/algorithms/PVT/libs/kml_printer.cc
@@ -24,6 +24,7 @@
 #include <cstdlib>    // for mkstemp
 #include <ctime>      // for tm
 #include <exception>  // for exception
+#include <iomanip>    // for std::setprecision
 #include <iostream>   // for cout, cerr
 #include <sstream>
 #include <sys/stat.h>   // for S_IXUSR | S_IRWXG | S_IRWXO
diff --git a/src/tests/system-tests/position_test.cc b/src/tests/system-tests/position_test.cc
index f3f96c0da..a2bb5181d 100644
--- a/src/tests/system-tests/position_test.cc
+++ b/src/tests/system-tests/position_test.cc
@@ -46,6 +46,7 @@
 #include <chrono>
 #include <cmath>
 #include <fstream>
+#include <iomanip>
 #include <numeric>
 #include <thread>
 
diff --git a/src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test.cc b/src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test.cc
index 43388e8b2..9cb2337d4 100644
--- a/src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test.cc
+++ b/src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test.cc
@@ -63,6 +63,7 @@
 #include <chrono>
 #include <cmath>
 #include <exception>
+#include <iomanip>
 #include <unistd.h>
 #include <utility>
 #if GNSSTK_USES_GPSTK_NAMESPACE
diff --git a/src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test_fpga.cc b/src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test_fpga.cc
index b34f52d86..37264bf4b 100644
--- a/src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test_fpga.cc
+++ b/src/tests/unit-tests/signal-processing-blocks/observables/hybrid_observables_test_fpga.cc
@@ -62,6 +62,7 @@
 #include <chrono>
 #include <cmath>
 #include <exception>
+#include <iomanip>
 #include <pthread.h>
 #include <unistd.h>
 #include <utility>
diff --git a/src/tests/unit-tests/signal-processing-blocks/telemetry_decoder/gps_l1_ca_telemetry_decoder_test.cc b/src/tests/unit-tests/signal-processing-blocks/telemetry_decoder/gps_l1_ca_telemetry_decoder_test.cc
index bc56d4cd2..3155a3ab8 100644
--- a/src/tests/unit-tests/signal-processing-blocks/telemetry_decoder/gps_l1_ca_telemetry_decoder_test.cc
+++ b/src/tests/unit-tests/signal-processing-blocks/telemetry_decoder/gps_l1_ca_telemetry_decoder_test.cc
@@ -22,6 +22,7 @@
 #include <gnuradio/top_block.h>
 #include <chrono>
 #include <exception>
+#include <iomanip>
 #include <string>
 #include <unistd.h>
 #include <utility>
diff --git a/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_dll_pll_tracking_test.cc b/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_dll_pll_tracking_test.cc
index fb3a63cef..87af5fe45 100644
--- a/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_dll_pll_tracking_test.cc
+++ b/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_dll_pll_tracking_test.cc
@@ -39,6 +39,7 @@
 #include <matio.h>
 #include <pmt/pmt.h>
 #include <chrono>
+#include <iomanip>
 #include <unistd.h>
 #include <utility>
 #include <vector>
diff --git a/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_dll_pll_tracking_test_fpga.cc b/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_dll_pll_tracking_test_fpga.cc
index 85d54d1a1..0fa07a93a 100644
--- a/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_dll_pll_tracking_test_fpga.cc
+++ b/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_dll_pll_tracking_test_fpga.cc
@@ -42,6 +42,7 @@
 #include <chrono>
 #include <cstdio>  // FPGA read input file
 #include <fcntl.h>
+#include <iomanip>
 #include <iostream>
 #include <unistd.h>
 #include <utility>
diff --git a/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_kf_tracking_test.cc b/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_kf_tracking_test.cc
index ea3bd765d..ae94e744a 100644
--- a/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_kf_tracking_test.cc
+++ b/src/tests/unit-tests/signal-processing-blocks/tracking/gps_l1_ca_kf_tracking_test.cc
@@ -38,6 +38,7 @@
 #include <gtest/gtest.h>
 #include <pmt/pmt.h>
 #include <chrono>
+#include <iomanip>
 #include <unistd.h>
 #include <utility>
 #include <vector>