diff --git a/test/float_tests.c b/test/float_tests.c
index ce078d4..d59241f 100644
--- a/test/float_tests.c
+++ b/test/float_tests.c
@@ -281,10 +281,10 @@
     {"\xFB\xC3\xDF\xFF\xFF\xFF\xFF\xFF\xFF", 9}, {"\xFB\xC3\xDF\xFF\xFF\xFF\xFF\xFF\xFF", 9},
     {"\xFB\xC3\xDF\xFF\xFF\xFF\xFF\xFF\xFF", 9}, {"\x3B\x7F\xFF\xFF\xFF\xFF\xFF\xFB\xFF", 9}},
 
-   /* -18446742974197924000.0.0 -- large negative that converts to float, but too large for int64 */
-   {-18446742974197924000.0,                     -18446742974197924000.0f,
+   /* -18446742974197923840.0 -- large negative that converts to float, but too large for int64 */
+   {-18446742974197923840.0,                     -18446742974197923840.0f,
     {"\xFA\xDF\x7F\xFF\xFF",                 5}, {"\xFB\xC3\xEF\xFF\xFF\xE0\x00\x00\x00", 9},
-    {"\xFA\xDF\x7F\xFF\xFF",                 5}, {"\xFA\xDF\x7F\xFF\xFF",                 5}},
+    {"\xFA\xDF\x7F\xFF\xFF",                 5}, {"\x3B\xFF\xFF\xFE\xFF\xFF\xFF\xFF\xFF", 9}},
 
    /* 3.4028234663852886E+38 -- largest possible single */
    {3.4028234663852886E+38,                      3.40282347E+38f,
@@ -414,7 +414,7 @@
    for(uTestIndex = 0; FloatTestCases[uTestIndex].Preferred.len != 0; uTestIndex++) {
       pTestCase = &FloatTestCases[uTestIndex];
 
-      if(uTestIndex == 34) {
+      if(uTestIndex == 40) {
          uDecoded = 1;
       }