diff --git a/CHANGELOG.md b/CHANGELOG.md
index 011b04a..17cb141 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@ Game store page: https://crispypin.itch.io/marble-machinations
 
 ## [unreleased]
 
+## v0.3.1 - 2025-04-05
+### fixed
+- broken area calculation causing crash when completing a level with a machine wider than it is tall
+
 ## v0.3.0 - 2025-04-04
 ### added
 - score number: bounding area
diff --git a/Cargo.lock b/Cargo.lock
index d4c39b5..0481cd8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "aho-corasick"
@@ -213,7 +213,7 @@ checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
 
 [[package]]
 name = "marble-machinations"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "arboard",
  "raylib",
diff --git a/Cargo.toml b/Cargo.toml
index e184723..d7d32d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "marble-machinations"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2021"
 default-run = "marble-machinations"
 
diff --git a/src/marble_engine/grid.rs b/src/marble_engine/grid.rs
index 1e0bc8d..63f2f64 100644
--- a/src/marble_engine/grid.rs
+++ b/src/marble_engine/grid.rs
@@ -124,9 +124,9 @@ impl Grid {
 	}
 
 	pub fn used_bounds_area(&self) -> usize {
-		let row_clear = |a, max, f: fn(usize, usize) -> (usize, usize)| {
-			for b in 0..max {
-				if !self.get_unchecked(f(a, b).into()).is_blank() {
+		let row_clear = |y| {
+			for x in 0..self.width {
+				if !self.get_unchecked((x, y).into()).is_blank() {
 					return false;
 				}
 			}
@@ -134,29 +134,37 @@ impl Grid {
 		};
 		let mut height = self.height;
 		for y in 0..self.height {
-			if row_clear(y, self.width, |y, x| (x, y)) {
+			if row_clear(y) {
 				height -= 1;
 			} else {
 				break;
 			}
 		}
 		for y in (0..self.height).rev() {
-			if row_clear(y, self.width, |y, x| (x, y)) {
+			if row_clear(y) {
 				height -= 1;
 			} else {
 				break;
 			}
 		}
+		let col_clear = |x| {
+			for y in 0..self.height {
+				if !self.get_unchecked((x, y).into()).is_blank() {
+					return false;
+				}
+			}
+			true
+		};
 		let mut width = self.width;
 		for x in 0..self.width {
-			if row_clear(x, self.height, |x, y| (x, y)) {
+			if col_clear(x) {
 				width -= 1;
 			} else {
 				break;
 			}
 		}
 		for x in (0..self.width).rev() {
-			if row_clear(x, self.width, |x, y| (x, y)) {
+			if col_clear(x) {
 				width -= 1;
 			} else {
 				break;