diff --git a/Marlin/src/inc/SanityCheck.h b/Marlin/src/inc/SanityCheck.h
index 8a293b52a8..df86cea522 100644
--- a/Marlin/src/inc/SanityCheck.h
+++ b/Marlin/src/inc/SanityCheck.h
@@ -868,6 +868,8 @@ static_assert(COUNT(arm) == LOGICAL_AXES, "AXIS_RELATIVE_MODES must contain " _L
       #error "SMOOTH_LIN_ADVANCE requires a 32-bit CPU."
     #elif ENABLED(S_CURVE_ACCELERATION)
       #error "SMOOTH_LIN_ADVANCE is not compatible with S_CURVE_ACCELERATION."
+    #elif ENABLED(NONLINEAR_EXTRUSION)
+      #error "SMOOTH_LIN_ADVANCE doesn't currently support NONLINEAR_EXTRUSION."
     #elif ENABLED(INPUT_SHAPING_E_SYNC) && NONE(INPUT_SHAPING_X, INPUT_SHAPING_Y)
       #error "INPUT_SHAPING_E_SYNC requires INPUT_SHAPING_X or INPUT_SHAPING_Y."
     #endif