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-rw-r--r--amd64/emit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/amd64/emit.c b/amd64/emit.c
index 09b90d5..a888000 100644
--- a/amd64/emit.c
+++ b/amd64/emit.c
@@ -555,7 +555,7 @@ amd64_emitfn(Fn *fn, FILE *f)
 	);
 	fs = framesz(fn);
 	if (fs)
-		fprintf(f, "\tsub $%"PRIu64", %%rsp\n", fs);
+		fprintf(f, "\tsubq $%"PRIu64", %%rsp\n", fs);
 	if (fn->vararg) {
 		o = -176;
 		for (r=amd64_sysv_rsave; r<&amd64_sysv_rsave[6]; r++, o+=8)