diff --git a/Photo.cs b/Photo.cs
index fa4eb91..a0bfad2 100644
--- a/Photo.cs
+++ b/Photo.cs
@@ -105,7 +105,7 @@ public class Photo {
   public GpsInfo? Gps = null;
   public Rectangle CropRectangle = Rectangle.Empty;
   public Vector2i ViewOffset = Vector2i.Zero;
-  public float RotationDegrees = 0;
+  public int RotationDegreeHundredths = 0;
 
   private static long touchCounter = 0;
   private Texture texture;
@@ -219,8 +219,8 @@ public class Photo {
       Console.WriteLine($"{Filename} => {jpgOut}");
       await image.SaveAsync(jpgOut, new JpegEncoder() { Quality = 100 });
 
-      if (Math.Abs(RotationDegrees) > 0.001) {
-        image.Mutate(x => x.Rotate(RotationDegrees));
+      if (RotationDegreeHundredths != 0) {
+        image.Mutate(x => x.Rotate(RotationDegreeHundredths / 100f));
       }
       if (CropRectangle != Rectangle.Empty) {
         image.Mutate(x => x.Crop(CropRectangle));
diff --git a/Program.cs b/Program.cs
index 23d0af8..a3af112 100644
--- a/Program.cs
+++ b/Program.cs
@@ -257,24 +257,24 @@ public class CropTool : ITool {
 public class StraightenTool : ITool {
 
   Photo photo;
-  float initialRotation;
+  int initialRotation;
 
   public StraightenTool(Photo photo) {
     this.photo = photo;
-    initialRotation = photo.RotationDegrees;
+    initialRotation = photo.RotationDegreeHundredths;
   }
 
   public ToolStatus HandleInput(KeyboardState input, MouseState mouse, Transform transform, Game game, Photo photo, UiGeometry geometry) {
     if (input.IsKeyPressed(Keys.D0)) {
-      photo.RotationDegrees = 0;
+      photo.RotationDegreeHundredths = 0;
     }
 
     if (input.IsKeyPressed(Keys.Left)) {
-      photo.RotationDegrees += .1f;
+      photo.RotationDegreeHundredths += 10;
     }
 
     if (input.IsKeyPressed(Keys.Right)) {
-      photo.RotationDegrees -= .1f;
+      photo.RotationDegreeHundredths -= 10;
     }
 
     if (input.IsKeyPressed(Keys.Enter)) {
@@ -282,7 +282,7 @@ public class StraightenTool : ITool {
     }
 
     if (input.IsKeyPressed(Keys.Escape)) {
-      photo.RotationDegrees = initialRotation;
+      photo.RotationDegreeHundredths = initialRotation;
       return ToolStatus.Canceled;
     }
 
@@ -290,7 +290,7 @@ public class StraightenTool : ITool {
   }
 
   public string Status() {
-    return String.Format("[straighten] {0:F2}", photo.RotationDegrees);
+    return String.Format("[straighten] {0:F2}", photo.RotationDegreeHundredths / 100f);
   }
 }
 
@@ -983,7 +983,7 @@ public class Game : GameWindow {
                                   renderSize.X, renderSize.Y);
     activeOffset = new(photoBox.Min.X, photoBox.Min.Y);
     transform = new Transform(activeScale, activeOffset, activePhoto.Size);
-    DrawTexture(active, photoBox, Color4.White, activePhoto.RotationDegrees);
+    DrawTexture(active, photoBox, Color4.White, activePhoto.RotationDegreeHundredths / 100f);
     for (int i = 0; i < 5; i++) {
       Texture star = (activePhoto.Rating > i) ? STAR_FILLED : STAR_EMPTY;
       DrawTexture(star, geometry.StarBoxes[i].Min.X, geometry.StarBoxes[i].Min.Y);