diff --git a/envs/monkey_zoo/blackbox/tests/performance/telem_sample_parsing/sample_file_parser.py b/envs/monkey_zoo/blackbox/tests/performance/telem_sample_parsing/sample_file_parser.py
index f12704d2d..70e25d8e7 100644
--- a/envs/monkey_zoo/blackbox/tests/performance/telem_sample_parsing/sample_file_parser.py
+++ b/envs/monkey_zoo/blackbox/tests/performance/telem_sample_parsing/sample_file_parser.py
@@ -30,8 +30,12 @@ class SampleFileParser:
     @staticmethod
     def read_telem_files() -> List[str]:
         telems = []
-        file_paths = [path.join(TELEM_DIR_PATH, f) for f in listdir(TELEM_DIR_PATH)
-                      if path.isfile(path.join(TELEM_DIR_PATH, f))]
+        try:
+            file_paths = [path.join(TELEM_DIR_PATH, f) for f in listdir(TELEM_DIR_PATH)
+                          if path.isfile(path.join(TELEM_DIR_PATH, f))]
+        except FileNotFoundError:
+            raise FileNotFoundError("Telemetries to send not found. "
+                                    "Refer to readme to figure out how to generate telemetries and where to put them.")
         for file_path in file_paths:
             with open(file_path, 'r') as telem_file:
                 telem_string = "".join(telem_file.readlines()).replace("\n", "")
diff --git a/envs/monkey_zoo/blackbox/tests/performance/telemetry_performance_test.py b/envs/monkey_zoo/blackbox/tests/performance/telemetry_performance_test.py
index 5fc97d222..4de77e41a 100644
--- a/envs/monkey_zoo/blackbox/tests/performance/telemetry_performance_test.py
+++ b/envs/monkey_zoo/blackbox/tests/performance/telemetry_performance_test.py
@@ -26,9 +26,8 @@ class TelemetryPerformanceTest:
         try:
             all_telemetries = SampleFileParser.get_all_telemetries()
         except FileNotFoundError:
-            LOGGER.error("Telemetries to send not found. Refer to readme to figure out how to generate telemetries "
-                         "and where to put them.")
-            return False
+            raise FileNotFoundError("Telemetries to send not found. "
+                                    "Refer to readme to figure out how to generate telemetries and where to put them.")
         LOGGER.info("Telemetries imported successfully.")
         all_telemetries.sort(key=lambda telem: telem['time']['$date'])
         telemetry_parse_times = {}