diff --git a/wpilibc/src/main/native/include/frc/apriltag/AprilTagFieldLayout.h b/wpilibc/src/main/native/include/frc/apriltag/AprilTagFieldLayout.h
index 69a6b51846..ec2217be1b 100644
--- a/wpilibc/src/main/native/include/frc/apriltag/AprilTagFieldLayout.h
+++ b/wpilibc/src/main/native/include/frc/apriltag/AprilTagFieldLayout.h
@@ -29,7 +29,7 @@ namespace frc {
  * The "tags" object is a list of all AprilTags contained within a layout. Each
  * AprilTag serializes to a JSON object containing an ID and a Pose3d. The
  * "field" object is a descriptor of the size of the field in meters with
- * "width" and "height" values.  This is to account for arbitrary field sizes
+ * "width" and "length" values.  This is to account for arbitrary field sizes
  * when mirroring the poses.
  *
  * Pose3ds are assumed to be measured from the bottom-left corner of the field,
diff --git a/wpilibj/src/main/java/edu/wpi/first/wpilibj/apriltag/AprilTagFieldLayout.java b/wpilibj/src/main/java/edu/wpi/first/wpilibj/apriltag/AprilTagFieldLayout.java
index 1659e9082b..22f7d2765d 100644
--- a/wpilibj/src/main/java/edu/wpi/first/wpilibj/apriltag/AprilTagFieldLayout.java
+++ b/wpilibj/src/main/java/edu/wpi/first/wpilibj/apriltag/AprilTagFieldLayout.java
@@ -28,7 +28,7 @@ import java.util.Optional;
  * <p>The JSON format contains two top-level objects, "tags" and "field". The "tags" object is a
  * list of all AprilTags contained within a layout. Each AprilTag serializes to a JSON object
  * containing an ID and a Pose3d. The "field" object is a descriptor of the size of the field in
- * meters with "width" and "height" values. This is to account for arbitrary field sizes when
+ * meters with "width" and "length" values. This is to account for arbitrary field sizes when
  * mirroring the poses.
  *
  * <p>Pose3ds are assumed to be measured from the bottom-left corner of the field, when the blue
@@ -176,13 +176,13 @@ public class AprilTagFieldLayout {
     public double fieldWidth;
 
     @SuppressWarnings("MemberName")
-    @JsonProperty(value = "height")
+    @JsonProperty(value = "length")
     public double fieldLength;
 
     @JsonCreator()
     FieldDimensions(
         @JsonProperty(required = true, value = "width") double fieldWidth,
-        @JsonProperty(required = true, value = "height") double fieldLength) {
+        @JsonProperty(required = true, value = "length") double fieldLength) {
       this.fieldWidth = fieldWidth;
       this.fieldLength = fieldLength;
     }