diff --git a/omnistat/collector_rms.py b/omnistat/collector_rms.py
index 07b83959..9ae2fe1a 100644
--- a/omnistat/collector_rms.py
+++ b/omnistat/collector_rms.py
@@ -36,7 +36,7 @@
 import os
 import platform
 
-from prometheus_client import Gauge, CollectorRegistry
+from prometheus_client import Gauge
 
 import omnistat.utils as utils
 from omnistat.collector_base import Collector
diff --git a/omnistat/query.py b/omnistat/query.py
index 9794aa90..226548a2 100755
--- a/omnistat/query.py
+++ b/omnistat/query.py
@@ -479,7 +479,7 @@ def generate_report_card(self):
             print("")
 
         print("")
-        print("Total GPU Energy Consumed = %.2f kWh" % self.gpu_energy_total_kwh)
+        print("Approximate Total GPU Energy Consumed = %.2f kWh" % self.gpu_energy_total_kwh)
         print("")
 
         print("--")
@@ -677,7 +677,7 @@ def dumpFile(self, outputFile):
 
         Story.append(Spacer(1, 0.2 * inch))
 
-        ptext = """Total GPU Energy Consumed = %.2f kWh""" % (self.gpu_energy_total_kwh)
+        ptext = """Approximate Total GPU Energy Consumed = %.2f kWh""" % (self.gpu_energy_total_kwh)
         Story.append(Paragraph(ptext, normal))
 
         # --