diff --git a/src/babel/generation/generators/types.js b/src/babel/generation/generators/types.js
index a84730394d..6732e6d06b 100644
--- a/src/babel/generation/generators/types.js
+++ b/src/babel/generation/generators/types.js
@@ -100,7 +100,11 @@ export function Literal(node) {
     // check to see if this is the same number as the raw one in the original source as asm.js uses
     // numbers in the form 5.0 for type hinting
     var raw = node.raw;
-    this.push(val === +raw ? raw : val + "");
+    if (val === +raw && raw[raw.length - 1] !== ".") {
+      this.push(raw);
+    } else {
+      this.push(val + "");
+    }
   } else if (type === "boolean") {
     this.push(val ? "true" : "false");
   } else if (node.regex) {
diff --git a/test/core/fixtures/transformation/es6.tail-call/call-apply/expected.js b/test/core/fixtures/transformation/es6.tail-call/call-apply/expected.js
index a243561b14..c7dcd045d5 100755
--- a/test/core/fixtures/transformation/es6.tail-call/call-apply/expected.js
+++ b/test/core/fixtures/transformation/es6.tail-call/call-apply/expected.js
@@ -25,4 +25,4 @@
       continue _function;
     }
   }
-})(1000000) === "foo";
+})(1e6) === "foo";
diff --git a/test/core/fixtures/transformation/es6.tail-call/expressions/expected.js b/test/core/fixtures/transformation/es6.tail-call/expressions/expected.js
index 306683936e..1246e98c10 100755
--- a/test/core/fixtures/transformation/es6.tail-call/expressions/expected.js
+++ b/test/core/fixtures/transformation/es6.tail-call/expressions/expected.js
@@ -26,4 +26,4 @@
       continue _function;
     }
   }
-})(1000000, true) === "foo";
+})(1e6, true) === "foo";
diff --git a/test/core/fixtures/transformation/es6.tail-call/recursion/expected.js b/test/core/fixtures/transformation/es6.tail-call/recursion/expected.js
index ebec4402e3..ca30fc0ec7 100755
--- a/test/core/fixtures/transformation/es6.tail-call/recursion/expected.js
+++ b/test/core/fixtures/transformation/es6.tail-call/recursion/expected.js
@@ -27,4 +27,4 @@
     _again = true;
     continue _function;
   }
-})(1000000, true) === "foo";
+})(1e6, true) === "foo";
diff --git a/test/core/fixtures/transformation/es6.tail-call/try-catch/expected.js b/test/core/fixtures/transformation/es6.tail-call/try-catch/expected.js
index 434dad6698..4be762ccb2 100755
--- a/test/core/fixtures/transformation/es6.tail-call/try-catch/expected.js
+++ b/test/core/fixtures/transformation/es6.tail-call/try-catch/expected.js
@@ -8,7 +8,7 @@
   try {
     return f(n - 1);
   } catch (e) {}
-})(1000000) === "foo";
+})(1e6) === "foo";
 
 (function f(_x) {
   var _again = true;
@@ -29,7 +29,7 @@
       continue _function;
     }
   }
-})(1000000) === "foo";
+})(1e6) === "foo";
 
 (function f(n) {
   if (n <= 0) {
@@ -41,7 +41,7 @@
   } catch (e) {
     return f(n - 1);
   } finally {}
-})(1000000) === "foo";
+})(1e6) === "foo";
 
 (function f(_x2) {
   var _again2 = true;
@@ -60,4 +60,4 @@
       continue _function2;
     }
   }
-})(1000000) === "foo";
+})(1e6) === "foo";