diff --git a/src/type.zig b/src/type.zig
index d78e2909b5ea98c86385c460b3e1c75094214724..8f2cd7c54d44ab14cc157332e87a9a164a7054f1 100644
--- a/src/type.zig
+++ b/src/type.zig
@@ -6827,7 +6827,7 @@ pub const CType = enum {
                     },
                     .longlong, .ulonglong, .double => return 64,
                     .longdouble => switch (target.abi) {
-                        .gnu, .gnuilp32, .cygnus => return 128,
+                        .gnu, .gnuilp32, .cygnus => return 80,
                         else => return 64,
                     },
                 },