diff --git a/compiler-rt/test/fuzzer/AlignmentAssumptionTest.cpp b/compiler-rt/test/fuzzer/AlignmentAssumptionTest.cpp
index 58209f0..a9c4fc6 100644
--- a/compiler-rt/test/fuzzer/AlignmentAssumptionTest.cpp
+++ b/compiler-rt/test/fuzzer/AlignmentAssumptionTest.cpp
@@ -20,7 +20,7 @@
     if (Size > 1 && Data[1] == 'i') {
       Sink = 2;
       if (Size > 2 && Data[2] == '!') {
-        __builtin_assume_aligned(Data + 1, 0x8000);
+        auto r = __builtin_assume_aligned(Data + 1, 0x8000);
       }
     }
   }