diff --git a/Marlin/dac_mcp4728.cpp b/Marlin/dac_mcp4728.cpp
index 2124a803e0e17790bd6ead8561d46076170d9261..a06346c6ebb91f8f46f36e2628036fb6edc56aff 100644
--- a/Marlin/dac_mcp4728.cpp
+++ b/Marlin/dac_mcp4728.cpp
@@ -114,13 +114,13 @@ uint16_t mcp4728_getVout(uint8_t channel) {
 /**
  * Returns DAC values as a 0-100 percentage of drive strength
  */
-uint16_t mcp4728_getDrvPct(uint8_t channel) { return uint16_t(100.0 * mcp4728_values[channel] / (DAC_STEPPER_MAX) + 0.5); }
+uint8_t mcp4728_getDrvPct(uint8_t channel) { return uint8_t(100.0 * mcp4728_values[channel] / (DAC_STEPPER_MAX) + 0.5); }
 
 /**
  * Receives all Drive strengths as 0-100 percent values, updates
  * DAC Values array and calls fastwrite to update the DAC.
  */
-void mcp4728_setDrvPct(uint16_t pct[XYZE]) {
+void mcp4728_setDrvPct(uint8_t pct[XYZE]) {
   LOOP_XYZE(i) mcp4728_values[i] = 0.01 * pct[i] * (DAC_STEPPER_MAX);
   mcp4728_fastWrite();
 }
diff --git a/Marlin/dac_mcp4728.h b/Marlin/dac_mcp4728.h
index a1e3e35503bbe549ec548589d7406acfadadcd9f..f8337316de53c48cc32079324826b115a00a691a 100644
--- a/Marlin/dac_mcp4728.h
+++ b/Marlin/dac_mcp4728.h
@@ -59,8 +59,8 @@ uint8_t mcp4728_setGain_all(uint8_t value);
 uint16_t mcp4728_getValue(uint8_t channel);
 uint8_t mcp4728_fastWrite();
 uint8_t mcp4728_simpleCommand(byte simpleCommand);
-uint16_t mcp4728_getDrvPct(uint8_t channel);
-void mcp4728_setDrvPct(uint16_t pct[XYZE]);
+uint8_t mcp4728_getDrvPct(uint8_t channel);
+void mcp4728_setDrvPct(uint8_t pct[XYZE]);
 
 #endif
 #endif // DAC_MCP4728_H