diff --git a/python_apps/airtime_analyzer/airtime_analyzer/cuepoint_analyzer.py b/python_apps/airtime_analyzer/airtime_analyzer/cuepoint_analyzer.py
index b5492ebe9..6b461f050 100644
--- a/python_apps/airtime_analyzer/airtime_analyzer/cuepoint_analyzer.py
+++ b/python_apps/airtime_analyzer/airtime_analyzer/cuepoint_analyzer.py
@@ -26,7 +26,7 @@ class CuePointAnalyzer(Analyzer):
         '''
         command = [CuePointAnalyzer.SILAN_EXECUTABLE, '-b', '-F', '0.99', '-f', 'JSON', filename]
         try:
-            results_json = subprocess.check_output(command, stderr=subprocess.STDOUT)
+            results_json = subprocess.check_output(command, stderr=subprocess.STDOUT, close_fds=True)
             silan_results = json.loads(results_json)
             metadata['length_seconds'] = float(silan_results['file duration'])
             # Conver the length into a formatted time string
@@ -42,4 +42,4 @@ class CuePointAnalyzer(Analyzer):
         except Exception as e:
             logging.warn(e)
 
-        return metadata
\ No newline at end of file
+        return metadata
diff --git a/python_apps/airtime_analyzer/airtime_analyzer/playability_analyzer.py b/python_apps/airtime_analyzer/airtime_analyzer/playability_analyzer.py
index 0a3656296..ec102eeb2 100644
--- a/python_apps/airtime_analyzer/airtime_analyzer/playability_analyzer.py
+++ b/python_apps/airtime_analyzer/airtime_analyzer/playability_analyzer.py
@@ -21,7 +21,7 @@ class PlayabilityAnalyzer(Analyzer):
         '''
         command = [PlayabilityAnalyzer.LIQUIDSOAP_EXECUTABLE, '-v', '-c', "output.dummy(audio_to_stereo(single('%s')))" % filename]
         try:
-            subprocess.check_output(command, stderr=subprocess.STDOUT)
+            subprocess.check_output(command, stderr=subprocess.STDOUT, close_fds=True)
 
         except OSError as e: # liquidsoap was not found
             logging.warn("Failed to run: %s - %s. %s" % (command[0], e.strerror, "Do you have liquidsoap installed?"))
diff --git a/python_apps/airtime_analyzer/airtime_analyzer/replaygain_analyzer.py b/python_apps/airtime_analyzer/airtime_analyzer/replaygain_analyzer.py
index 396d0d5ad..39ea2e439 100644
--- a/python_apps/airtime_analyzer/airtime_analyzer/replaygain_analyzer.py
+++ b/python_apps/airtime_analyzer/airtime_analyzer/replaygain_analyzer.py
@@ -19,7 +19,7 @@ class ReplayGainAnalyzer(Analyzer):
         '''
         command = [ReplayGainAnalyzer.REPLAYGAIN_EXECUTABLE, '-d', filename]
         try:
-            results = subprocess.check_output(command, stderr=subprocess.STDOUT)
+            results = subprocess.check_output(command, stderr=subprocess.STDOUT, close_fds=True)
             filename_token = "%s: " % filename
             rg_pos = results.find(filename_token, results.find("Calculating Replay Gain information")) + len(filename_token)
             db_pos = results.find(" dB", rg_pos)
@@ -33,4 +33,4 @@ class ReplayGainAnalyzer(Analyzer):
         except Exception as e:
             logging.warn(e)
 
-        return metadata
\ No newline at end of file
+        return metadata