diff --git a/app.js b/app.js
index 72eb1b2..08c0487 100644
--- a/app.js
+++ b/app.js
@@ -180,7 +180,7 @@ function server() {
                 else response.push(3) // incorrect nationality
 
                 // constructors
-                if (guess.constructors[guess.constructors.length - 1] == actual.constructors[guess.constructors.length - 1]) response.push(1) // correct constructor
+                if (guess.constructors[guess.constructors.length - 1] == actual.constructors[actual.constructors.length - 1]) response.push(1) // correct constructor
                 else if (actual.constructors.includes(guess.constructors[guess.constructors.length - 1])) response.push(4) // previous constructor
                 else response.push(3) // incorrect constructor
 
diff --git a/assets/js/main.js b/assets/js/main.js
index 4ce20f8..faaeddb 100644
--- a/assets/js/main.js
+++ b/assets/js/main.js
@@ -140,7 +140,7 @@ document.addEventListener("keyup", async function (event) {
                 }
             })
 
-            if (potential <= 1 || document.getElementsByClassName("autocomplete-items")[0].children.length <= 1) {
+            if (potential == 1 || document.getElementsByClassName("autocomplete-items")[0].children.length == 1 && value.replace(/[0-9]/g, '') != "") {
                 document.getElementById("myInput").value = ""
                 var x = document.getElementsByClassName("autocomplete-items");
                 for (var i = 0; i < x.length; i++) {
@@ -215,14 +215,18 @@ document.addEventListener("keyup", async function (event) {
                 }
             }
             else {
-                let element = document.getElementById("myInput")
-                element.style.removeProperty("animation")
-                setTimeout(() => element.style.animation = "shake .5s", 100)
+                shake()
             }
         }
     }
 });
 
+function shake() {
+    let element = document.getElementById("myInput")
+    element.style.removeProperty("animation")
+    setTimeout(() => element.style.animation = "shake .5s", 100)
+}
+
 function similarity(s1, s2) {
     var longer = s1;
     var shorter = s2;
@@ -234,7 +238,7 @@ function similarity(s1, s2) {
     if (longerLength == 0) {
         return 1.0;
     }
-    return (longer.includes(shorter)) ? (longerLength - editDistance(longer, shorter)) / parseFloat(longerLength) : 0;
+    return (longer.toLowerCase().includes(shorter.toLowerCase())) ? (longerLength - editDistance(longer, shorter)) / parseFloat(longerLength) : 0;
 }
 
 function editDistance(s1, s2) {