diff --git a/src/host/buildvm_asm.c b/src/host/buildvm_asm.c
index 5fc31287..992c3509 100644
--- a/src/host/buildvm_asm.c
+++ b/src/host/buildvm_asm.c
@@ -275,7 +275,9 @@ void emit_asm(BuildCtx *ctx)
   fprintf(ctx->fp, "\n");
   switch (ctx->mode) {
   case BUILD_elfasm:
+#if !LJ_TARGET_PS3
     fprintf(ctx->fp, "\t.section .note.GNU-stack,\"\"," ELFASM_PX "progbits\n");
+#endif
 #if LJ_TARGET_PPCSPE
     /* Soft-float ABI + SPE. */
     fprintf(ctx->fp, "\t.gnu_attribute 4, 2\n\t.gnu_attribute 8, 3\n");
diff --git a/src/lj_arch.h b/src/lj_arch.h
index 8d6830a3..7604d84b 100644
--- a/src/lj_arch.h
+++ b/src/lj_arch.h
@@ -204,7 +204,7 @@
 #if _ARCH_PPCSQ
 #define LJ_ARCH_SQRT		1
 #endif
-#if _ARCH_PPC5X
+#if _ARCH_PWR5X
 #define LJ_ARCH_ROUND		1
 #endif
 #if __PPU__