diff --git a/Marlin/src/core/serial.h b/Marlin/src/core/serial.h
index 68bb45abec01..b381f6f74f01 100644
--- a/Marlin/src/core/serial.h
+++ b/Marlin/src/core/serial.h
@@ -36,8 +36,8 @@ extern const char NUL_STR[], SP_P_STR[], SP_T_STR[],
                   X_STR[], Y_STR[], Z_STR[], I_STR[], J_STR[], K_STR[], U_STR[], V_STR[], W_STR[], E_STR[],
                   X_LBL[], Y_LBL[], Z_LBL[], I_LBL[], J_LBL[], K_LBL[], U_LBL[], V_LBL[], W_LBL[], E_LBL[];
 
-const char* const SP_AXIS_LBL[] PROGMEM = LOGICAL_AXIS_ARRAY(SP_E_LBL, SP_X_LBL, SP_Y_LBL, SP_Z_LBL, SP_I_LBL, SP_J_LBL, SP_K_LBL, SP_U_LBL, SP_V_LBL, SP_W_LBL);
-const char* const SP_AXIS_STR[] PROGMEM = LOGICAL_AXIS_ARRAY(SP_E_STR, SP_X_STR, SP_Y_STR, SP_Z_STR, SP_I_STR, SP_J_STR, SP_K_STR, SP_U_STR, SP_V_STR, SP_W_STR);
+PGM_P const SP_AXIS_LBL[] PROGMEM = LOGICAL_AXIS_ARRAY(SP_E_LBL, SP_X_LBL, SP_Y_LBL, SP_Z_LBL, SP_I_LBL, SP_J_LBL, SP_K_LBL, SP_U_LBL, SP_V_LBL, SP_W_LBL);
+PGM_P const SP_AXIS_STR[] PROGMEM = LOGICAL_AXIS_ARRAY(SP_E_STR, SP_X_STR, SP_Y_STR, SP_Z_STR, SP_I_STR, SP_J_STR, SP_K_STR, SP_U_STR, SP_V_STR, SP_W_STR);
 
 //
 // Debugging flags for use by M111
diff --git a/Marlin/src/core/utility.cpp b/Marlin/src/core/utility.cpp
index d80e495fe28f..658ed6cd81a5 100644
--- a/Marlin/src/core/utility.cpp
+++ b/Marlin/src/core/utility.cpp
@@ -126,7 +126,7 @@ void safe_delay(millis_t ms) {
         #if ABL_PLANAR
           SERIAL_ECHOPGM("ABL Adjustment");
           LOOP_NUM_AXES(a) {
-            SERIAL_ECHOPGM_P(SP_AXIS_STR[a]);
+            SERIAL_ECHOPGM_P((PGM_P)pgm_read_ptr(&SP_AXIS_STR[a]));
             serial_offset(planner.get_axis_position_mm(AxisEnum(a)) - current_position[a]);
           }
         #else
diff --git a/Marlin/src/gcode/calibrate/M425.cpp b/Marlin/src/gcode/calibrate/M425.cpp
index ea94821ce72f..77e0e5c09457 100644
--- a/Marlin/src/gcode/calibrate/M425.cpp
+++ b/Marlin/src/gcode/calibrate/M425.cpp
@@ -92,7 +92,7 @@ void GcodeSuite::M425() {
     SERIAL_ECHOLNPGM("  Correction Amount/Fade-out:     F", backlash.get_correction(), " (F1.0 = full, F0.0 = none)");
     SERIAL_ECHOPGM("  Backlash Distance (mm):        ");
     LOOP_NUM_AXES(a) if (axis_can_calibrate(a)) {
-      SERIAL_ECHOLNPGM_P(SP_AXIS_STR[a], backlash.get_distance_mm((AxisEnum)a));
+      SERIAL_ECHOLNPGM_P((PGM_P)pgm_read_ptr(&SP_AXIS_STR[a]), backlash.get_distance_mm((AxisEnum)a));
     }
 
     #ifdef BACKLASH_SMOOTHING_MM
@@ -103,7 +103,7 @@ void GcodeSuite::M425() {
       SERIAL_ECHOPGM("  Average measured backlash (mm):");
       if (backlash.has_any_measurement()) {
         LOOP_NUM_AXES(a) if (axis_can_calibrate(a) && backlash.has_measurement(AxisEnum(a))) {
-          SERIAL_ECHOPGM_P(SP_AXIS_STR[a], backlash.get_measurement((AxisEnum)a));
+          SERIAL_ECHOPGM_P((PGM_P)pgm_read_ptr(&SP_AXIS_STR[a]), backlash.get_measurement((AxisEnum)a));
         }
       }
       else
diff --git a/Marlin/src/gcode/control/M17_M18_M84.cpp b/Marlin/src/gcode/control/M17_M18_M84.cpp
index 9dab65f17efb..75d9e73f3b2f 100644
--- a/Marlin/src/gcode/control/M17_M18_M84.cpp
+++ b/Marlin/src/gcode/control/M17_M18_M84.cpp
@@ -184,7 +184,7 @@ void try_to_disable(const axis_flags_t to_disable) {
 
   auto overlap_warning = [](const ena_mask_t axis_bits) {
     SERIAL_ECHOPGM(" not disabled. Shared with");
-    LOOP_NUM_AXES(a) if (TEST(axis_bits, a)) SERIAL_ECHOPGM_P(SP_AXIS_STR[a]);
+    LOOP_NUM_AXES(a) if (TEST(axis_bits, a)) SERIAL_ECHOPGM_P((PGM_P)pgm_read_ptr(&SP_AXIS_STR[a]));
     #if HAS_EXTRUDERS
       #define _EN_STILLON(N) if (TEST(axis_bits, INDEX_OF_AXIS(E_AXIS, N))) SERIAL_CHAR(' ', 'E', '0' + N);
       REPEAT(EXTRUDERS, _EN_STILLON)
diff --git a/Marlin/src/gcode/host/M114.cpp b/Marlin/src/gcode/host/M114.cpp
index 306ecb2a6f0a..8ea300b5e053 100644
--- a/Marlin/src/gcode/host/M114.cpp
+++ b/Marlin/src/gcode/host/M114.cpp
@@ -37,7 +37,7 @@
   void report_all_axis_pos(const xyze_pos_t &pos, const uint8_t n=LOGICAL_AXES, const uint8_t precision=3) {
     char str[12];
     LOOP_L_N(a, n) {
-      SERIAL_ECHOPGM_P(SP_AXIS_LBL[a]);
+      SERIAL_ECHOPGM_P((PGM_P)pgm_read_ptr(&SP_AXIS_LBL[a]));
       if (pos[a] >= 0) SERIAL_CHAR(' ');
       SERIAL_ECHO(dtostrf(pos[a], 1, precision, str));
     }
@@ -47,7 +47,7 @@
 
   void report_linear_axis_pos(const xyz_pos_t &pos, const uint8_t precision=3) {
     char str[12];
-    LOOP_NUM_AXES(a) SERIAL_ECHOPGM_P(SP_AXIS_LBL[a], dtostrf(pos[a], 1, precision, str));
+    LOOP_NUM_AXES(a) SERIAL_ECHOPGM_P((PGM_P)pgm_read_ptr(&SP_AXIS_LBL[a]), dtostrf(pos[a], 1, precision, str));
     SERIAL_EOL();
   }
 
@@ -169,7 +169,7 @@
 
     SERIAL_ECHOPGM("Stepper:");
     LOOP_LOGICAL_AXES(i) {
-      SERIAL_ECHOPGM_P(SP_AXIS_LBL[i], stepper.position((AxisEnum)i));
+      SERIAL_ECHOPGM_P((PGM_P)pgm_read_ptr(&SP_AXIS_LBL[i]), stepper.position((AxisEnum)i));
     }
     SERIAL_EOL();