diff --git a/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/lib/Transforms/Scalar/SimplifyLibCalls.cpp
index 9e263ddf91b..22f3628cf7c 100644
--- a/lib/Transforms/Scalar/SimplifyLibCalls.cpp
+++ b/lib/Transforms/Scalar/SimplifyLibCalls.cpp
@@ -1408,7 +1408,6 @@ bool SimplifyLibCalls::doInitialization(Module &M) {
             continue;
           setOnlyReadsMemory(F);
           setDoesNotThrow(F);
-          setDoesNotCapture(F, 1);
         } else if (Name == "strcpy" ||
                    Name == "stpcpy" ||
                    Name == "strcat" ||