diff --git a/index.html b/index.html
index bcbe87b..6753b39 100644
--- a/index.html
+++ b/index.html
@@ -68,8 +68,8 @@
           <h2 class="sub-section-title">or paste byte array</h2>
           <textarea id="byte-input" class="byte-input"></textarea><br />
           <div class="text-input-size">
-            <input type="number" min="0" id="text-input-width" class="size-input" value="128" /> x
-            <input type="number" min="0" id="text-input-height" class="size-input" value="64" /> px
+            <input type="number" min="1" id="text-input-width" class="size-input" value="128" /> x
+            <input type="number" min="1" id="text-input-height" class="size-input" value="64" /> px
           </div>
           <div class="note">Set this to the size of your image.<br>Common sizes: <a href="#" class="size-preset" onclick="setTextInputSize(16, 16); return false;"><code>16x16</code></a>, <a href="#" class="size-preset" onclick="setTextInputSize(32, 32); return false;"><code>32x32</code></a>, <a href="#" class="size-preset" onclick="setTextInputSize(64, 48); return false;"><code>64x48</code></a>, <a href="#" class="size-preset" onclick="setTextInputSize(128, 32); return false;"><code>128x32</code></a>, <a href="#" class="size-preset" onclick="setTextInputSize(128, 64); return false;"><code>128x64</code></a>.</div>
           <div>
diff --git a/js/script.js b/js/script.js
index de86ee4..e0847f2 100644
--- a/js/script.js
+++ b/js/script.js
@@ -702,7 +702,7 @@ function handleImageSelection(evt) {
         w.type = 'number';
         w.name = 'width';
         w.id = 'screenWidth';
-        w.min = 0;
+        w.min = 1;
         w.className = 'size-input';
         w.value = img.width;
         settings.screenWidth = img.width;
@@ -716,7 +716,7 @@ function handleImageSelection(evt) {
         h.type = 'number';
         h.name = 'height';
         h.id = 'screenHeight';
-        h.min = 0;
+        h.min = 1;
         h.className = 'size-input';
         h.value = img.height;
         settings.screenHeight = img.height;