diff --git a/android/guava-tests/test/com/google/common/math/LongMathTest.java b/android/guava-tests/test/com/google/common/math/LongMathTest.java
index 21de0f55a837..e5598c68792d 100644
--- a/android/guava-tests/test/com/google/common/math/LongMathTest.java
+++ b/android/guava-tests/test/com/google/common/math/LongMathTest.java
@@ -587,7 +587,6 @@ public void testCheckedAdd() {
     }
   }
 
-  @GwtIncompatible // TODO
   @AndroidIncompatible // slow
   public void testCheckedSubtract() {
     for (long a : ALL_LONG_CANDIDATES) {
diff --git a/android/guava/src/com/google/common/math/LongMath.java b/android/guava/src/com/google/common/math/LongMath.java
index 6de6aacf897d..16e0248d99e4 100644
--- a/android/guava/src/com/google/common/math/LongMath.java
+++ b/android/guava/src/com/google/common/math/LongMath.java
@@ -547,7 +547,6 @@ public static long checkedAdd(long a, long b) {
    *
    * @throws ArithmeticException if {@code a - b} overflows in signed {@code long} arithmetic
    */
-  @GwtIncompatible // TODO
   // Whenever both tests are cheap and functional, it's faster to use &, | instead of &&, ||
   @SuppressWarnings("ShortCircuitBoolean")
   public static long checkedSubtract(long a, long b) {
diff --git a/guava-tests/test/com/google/common/math/LongMathTest.java b/guava-tests/test/com/google/common/math/LongMathTest.java
index 21de0f55a837..e5598c68792d 100644
--- a/guava-tests/test/com/google/common/math/LongMathTest.java
+++ b/guava-tests/test/com/google/common/math/LongMathTest.java
@@ -587,7 +587,6 @@ public void testCheckedAdd() {
     }
   }
 
-  @GwtIncompatible // TODO
   @AndroidIncompatible // slow
   public void testCheckedSubtract() {
     for (long a : ALL_LONG_CANDIDATES) {
diff --git a/guava/src/com/google/common/math/LongMath.java b/guava/src/com/google/common/math/LongMath.java
index 6de6aacf897d..16e0248d99e4 100644
--- a/guava/src/com/google/common/math/LongMath.java
+++ b/guava/src/com/google/common/math/LongMath.java
@@ -547,7 +547,6 @@ public static long checkedAdd(long a, long b) {
    *
    * @throws ArithmeticException if {@code a - b} overflows in signed {@code long} arithmetic
    */
-  @GwtIncompatible // TODO
   // Whenever both tests are cheap and functional, it's faster to use &, | instead of &&, ||
   @SuppressWarnings("ShortCircuitBoolean")
   public static long checkedSubtract(long a, long b) {