diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index a13df514b0..30fa7934f9 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -1988,9 +1988,9 @@
     // calibration.
     //#define BTC_PROBE_TEMP    30  // (°C)
 
-    // Height above Z=0.0f to raise the nozzle. Lowering this can help the probe to heat faster.
-    // Note: the Z=0.0f offset is determined by the probe offset which can be set using M851.
-    //#define PTC_PROBE_HEATING_OFFSET 0.5f
+    // Height above Z=0.0 to raise the nozzle. Lowering this can help the probe to heat faster.
+    // Note: the Z=0.0 offset is determined by the probe offset which can be set using M851.
+    //#define PTC_PROBE_HEATING_OFFSET 0.5
 
     // Height to raise the Z-probe between heating and taking the next measurement. Some probes
     // may fail to untrigger if they have been triggered for a long time, which can be solved by