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 84ee50328..fbc8807b6 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
@@ -53,7 +53,7 @@
 #include "gps_l1_ca_dll_pll_tracking.h"
 #include "tracking_true_obs_reader.h"
 #include "tracking_dump_reader.h"
-#include "signal_generator_flags"
+#include "signal_generator_flags.h"
 
 DECLARE_string(generator_binary);
 DECLARE_string(rinex_nav_file);