diff --git a/src/system/libroot/posix/malloc_hoard2/arch-specific.cpp b/src/system/libroot/posix/malloc_hoard2/arch-specific.cpp
index 7ac64c2a55..8d48666dd8 100644
--- a/src/system/libroot/posix/malloc_hoard2/arch-specific.cpp
+++ b/src/system/libroot/posix/malloc_hoard2/arch-specific.cpp
@@ -52,7 +52,7 @@ static const size_t kHeapIncrement = 16 * B_PAGE_SIZE;
 	// the steps in which to increase the heap size (must be a power of 2)
 
 #if B_HAIKU_64_BIT
-static const addr_t kHeapReservationBase = 0x1000000000;
+static const addr_t kHeapReservationBase = 0x100100000000;
 static const addr_t kHeapReservationSize = 0x1000000000;
 #else
 static const addr_t kHeapReservationBase = 0x18000000;