1 files changed, 2 insertions, 1 deletions
diff --git a/lib/compress.js b/lib/compress.js
index f82a165e..9366091c 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -2953,7 +2953,8 @@ merge(Compressor.prototype, {
                 && typeof result == "number"
                 && (this.operator == "+" || this.operator == "-")) {
                 var digits = Math.max(0, decimals(left), decimals(right));
-                if (digits < 21) return +result.toFixed(digits);
+                // 53-bit significand => 15.95 decimal places
+                if (digits < 16) return +result.toFixed(digits);
             }
             return result;