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-rw-r--r--src/rt/rust_stack.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/rt/rust_stack.cpp b/src/rt/rust_stack.cpp
index 0b44575e0f6..279d2b45c60 100644
--- a/src/rt/rust_stack.cpp
+++ b/src/rt/rust_stack.cpp
@@ -24,7 +24,7 @@ reuse_valgrind_stack(stk_seg *stk, uint8_t *sp) {
     assert(sp >= stk->data && sp <= (uint8_t*) stk->end
 	   && "Stack pointer must be inside stack segment");
     size_t sz = stk->end - (uintptr_t)sp;
-    VALGRIND_MAKE_MEM_UNDEFINED(sp, sz);
+    (void) VALGRIND_MAKE_MEM_UNDEFINED(sp, sz);
 }
 
 void