diff --git a/src/reformat_libyuv.c b/src/reformat_libyuv.c
index 00ca58f..63f1bf6 100644
--- a/src/reformat_libyuv.c
+++ b/src/reformat_libyuv.c
@@ -495,6 +495,7 @@
 #endif
             return AVIF_RESULT_OK;
         } else if (image->yuvFormat == AVIF_PIXEL_FORMAT_YUV400) {
+#if LIBYUV_VERSION >= 1756
             if (I400ToARGBMatrix(image->yuvPlanes[AVIF_CHAN_Y],
                                  image->yuvRowBytes[AVIF_CHAN_Y],
                                  rgb->pixels,
@@ -505,6 +506,7 @@
                 return AVIF_RESULT_REFORMAT_FAILED;
             }
             return AVIF_RESULT_OK;
+#endif
         }
     } else if (rgb->format == AVIF_RGB_FORMAT_RGBA) {
         // AVIF_RGB_FORMAT_RGBA  *ToARGBMatrix   matrixYVU
@@ -589,6 +591,7 @@
 #endif
             return AVIF_RESULT_OK;
         } else if (image->yuvFormat == AVIF_PIXEL_FORMAT_YUV400) {
+#if LIBYUV_VERSION >= 1756
             if (I400ToARGBMatrix(image->yuvPlanes[AVIF_CHAN_Y],
                                  image->yuvRowBytes[AVIF_CHAN_Y],
                                  rgb->pixels,
@@ -599,6 +602,7 @@
                 return AVIF_RESULT_REFORMAT_FAILED;
             }
             return AVIF_RESULT_OK;
+#endif
         }
     } else if (rgb->format == AVIF_RGB_FORMAT_ABGR) {
         // AVIF_RGB_FORMAT_ABGR  *ToRGBAMatrix   matrixYUV