diff --git a/examples/all-in-one.py b/examples/all-in-one.py
index 87acc6f..03e4d58 100755
--- a/examples/all-in-one.py
+++ b/examples/all-in-one.py
@@ -201,7 +201,7 @@ def get_cpu_temperature():
             except pmsReadTimeoutError:
                 logging.warn("Failed to read PMS5003")
             else:
-                data = data.pm_ug_per_m3(1.0)
+                data = float(data.pm_ug_per_m3(1.0))
                 display_text(variables[mode], data, unit)
 
         if mode == 8:
@@ -212,7 +212,7 @@ def get_cpu_temperature():
             except pmsReadTimeoutError:
                 logging.warn("Failed to read PMS5003")
             else:
-                data = data.pm_ug_per_m3(2.5)
+                data = float(data.pm_ug_per_m3(2.5))
                 display_text(variables[mode], data, unit)
 
         if mode == 9:
@@ -223,7 +223,7 @@ def get_cpu_temperature():
             except pmsReadTimeoutError:
                 logging.warn("Failed to read PMS5003")
             else:
-                data = data.pm_ug_per_m3(10)
+                data = float(data.pm_ug_per_m3(10))
                 display_text(variables[mode], data, unit)
 
 # Exit cleanly