diff --git a/src/util/HugeAllocator.hxx b/src/util/HugeAllocator.hxx
index b838f3862..0ae1c8581 100644
--- a/src/util/HugeAllocator.hxx
+++ b/src/util/HugeAllocator.hxx
@@ -107,7 +107,7 @@ HugeDiscard(void *p, size_t size) noexcept
 
 #include <stdint.h>
 
-WritableBuffer<void>
+static inline WritableBuffer<void>
 HugeAllocate(size_t size)
 {
 	return {new uint8_t[size], size};