diff --git a/SheepShaver/src/emul_op.cpp b/SheepShaver/src/emul_op.cpp
index 38a5e09a..34246ab8 100644
--- a/SheepShaver/src/emul_op.cpp
+++ b/SheepShaver/src/emul_op.cpp
@@ -261,7 +261,7 @@ void EmulOp(M68kRegisters *r, uint32 pc, int selector)
 			MakeExecutableTvec = (uint32 *)FindLibSymbol("\023PrivateInterfaceLib", "\016MakeExecutable");
 			D(bug("MakeExecutable TVECT at %p\n", MakeExecutableTvec));
 #if EMULATED_PPC
-			MakeExecutableTvec[0] = POWERPC_NATIVE_OP_FUNC(NATIVE_MAKE_EXECUTABLE);
+			MakeExecutableTvec[0] = htonl(POWERPC_NATIVE_OP_FUNC(NATIVE_MAKE_EXECUTABLE));
 #else
 #ifdef __BEOS__
 			MakeExecutableTvec[0] = ((uint32 *)MakeExecutable)[0];