diff --git a/libraries/stdlib/test/text/StringNumberConversionTest.kt b/libraries/stdlib/test/text/StringNumberConversionTest.kt
index 314063d03ff..6d1fa5124c7 100644
--- a/libraries/stdlib/test/text/StringNumberConversionTest.kt
+++ b/libraries/stdlib/test/text/StringNumberConversionTest.kt
@@ -144,8 +144,11 @@ class StringNumberConversionTest {
             assertProduces("7.7e1", 77.0)
             assertProduces("+770e-1", 77.0)
 
-            assertProduces("-NaN", -Double.NaN)
+            assertProduces("NaN", Double.NaN)
+            assertProduces("Infinity", Double.POSITIVE_INFINITY)
             assertProduces("+Infinity", Double.POSITIVE_INFINITY)
+            assertProduces("-NaN", -Double.NaN)
+            assertProduces("-Infinity", Double.NEGATIVE_INFINITY)
 
             assertFailsOrNull("7..7")
             assertFailsOrNull("007 not a number")
@@ -165,8 +168,11 @@ class StringNumberConversionTest {
             assertProduces("7.7e1", 77.0f)
             assertProduces("+770e-1", 77.0f)
 
-            assertProduces("-NaN", -Float.NaN)
+            assertProduces("NaN", Float.NaN)
+            assertProduces("Infinity", Float.POSITIVE_INFINITY)
             assertProduces("+Infinity", Float.POSITIVE_INFINITY)
+            assertProduces("-NaN", -Float.NaN)
+            assertProduces("-Infinity", Float.NEGATIVE_INFINITY)
 
             assertFailsOrNull("7..7")
             assertFailsOrNull("007 not a number")
diff --git a/libraries/stdlib/wasm/src/kotlin/text/FloatingPointParser.kt b/libraries/stdlib/wasm/src/kotlin/text/FloatingPointParser.kt
index fd7d9f2f811..96e5472fc42 100644
--- a/libraries/stdlib/wasm/src/kotlin/text/FloatingPointParser.kt
+++ b/libraries/stdlib/wasm/src/kotlin/text/FloatingPointParser.kt
@@ -82,7 +82,7 @@ internal fun parseDouble(string: String): Double {
     if (tryParseWord("Infinity")) {
         parseUnsignificants()
         if (index != string.length) numberFormatError(string)
-        return if (!isNegative) Double.POSITIVE_INFINITY else -Double.NEGATIVE_INFINITY
+        return if (!isNegative) Double.POSITIVE_INFINITY else Double.NEGATIVE_INFINITY
     }
 
     val numberBuilder = StringBuilder()