diff --git a/crates/oxc_minifier/src/peephole/minimize_conditional_expression.rs b/crates/oxc_minifier/src/peephole/minimize_conditional_expression.rs
index fa08ba031ec42..8ef342f5e019b 100644
--- a/crates/oxc_minifier/src/peephole/minimize_conditional_expression.rs
+++ b/crates/oxc_minifier/src/peephole/minimize_conditional_expression.rs
@@ -1,4 +1,5 @@
 use oxc_ast::{ast::*, NONE};
+use oxc_ecmascript::side_effects::MayHaveSideEffects;
 use oxc_span::{ContentEq, GetSpan};
 use oxc_syntax::es_target::ESTarget;
 
@@ -241,14 +242,15 @@ impl<'a> PeepholeOptimizations {
         }
 
         // `a ? b(c, d) : b(e, d)` -> `b(a ? c : e, d)`
-        if let (
-            Expression::Identifier(test),
-            Expression::CallExpression(consequent),
-            Expression::CallExpression(alternate),
-        ) = (&expr.test, &mut expr.consequent, &mut expr.alternate)
+        if let (Expression::CallExpression(consequent), Expression::CallExpression(alternate)) =
+            (&mut expr.consequent, &mut expr.alternate)
         {
             if consequent.arguments.len() == alternate.arguments.len()
-                && !ctx.is_global_reference(test)
+                // we can improve compression by allowing side effects on one side if the other side is
+                // an identifier that is not modified after it is declared.
+                // but for now, we only perform compression if neither side has side effects.
+                && !(ctx.expression_may_have_side_effects(&expr.test)
+                    || ctx.expression_may_have_side_effects(&consequent.callee))
                 && ctx.expr_eq(&consequent.callee, &alternate.callee)
                 && consequent
                     .arguments
@@ -647,9 +649,13 @@ mod test {
         test("a ? (b, c) : c", "(a && b), c");
         test("a ? b || c : c", "(a && b) || c");
         test("a ? c : b && c", "(a || b) && c");
-        test("var a; a ? b(c, d) : b(e, d)", "var a; b(a ? c : e, d)");
-        test("var a; a ? b(...c) : b(...e)", "var a; b(...a ? c : e)");
-        test("var a; a ? b(c) : b(e)", "var a; b(a ? c : e)");
+        test("var a, b; a ? b(c, d) : b(e, d)", "var a, b; b(a ? c : e, d)");
+        test("var a, b; a ? b(...c) : b(...e)", "var a, b; b(...a ? c : e)");
+        test("var a, b; a ? b(c) : b(e)", "var a, b; b(a ? c : e)");
+        test("var a, b; a === 0 ? b(c) : b(e)", "var a, b; b(a === 0 ? c : e)");
+        test_same("var a; a === 0 ? b(c) : b(e)"); // accessing global `b` may assign a different value to `a`
+        test_same("var b; a === 0 ? b(c) : b(e)"); // accessing global `a` may assign a different value to `b`
+        test_same("a === 0 ? b(c) : b(e)"); // accessing global `a`, `b` may have a side effect
         test("a() != null ? a() : b", "a() == null ? b : a()");
         test("var a; a != null ? a : b", "var a; a ?? b");
         test("var a; (a = _a) != null ? a : b", "var a; (a = _a) ?? b");
diff --git a/crates/oxc_minifier/tests/peephole/mod.rs b/crates/oxc_minifier/tests/peephole/mod.rs
index 251e5fae1f7d8..a83fcab3f8d01 100644
--- a/crates/oxc_minifier/tests/peephole/mod.rs
+++ b/crates/oxc_minifier/tests/peephole/mod.rs
@@ -22,7 +22,7 @@ fn integration() {
     return console.log(JSON.stringify(os))
     })",
         r#"require("./index.js")(function(e, os) {
-    return console.log(e || JSON.stringify(os));
+    return e ? console.log(e) : console.log(JSON.stringify(os));
     });"#,
     );
 
diff --git a/tasks/minsize/minsize.snap b/tasks/minsize/minsize.snap
index 50f442a87b3c3..2d5a82d862848 100644
--- a/tasks/minsize/minsize.snap
+++ b/tasks/minsize/minsize.snap
@@ -13,15 +13,15 @@ Original   | minified   | minified   | gzip       | gzip       | Fixture
 
 555.77 kB  | 271.20 kB  | 270.13 kB  | 88.30 kB   | 90.80 kB   | d3.js     
 
-1.01 MB    | 440.93 kB  | 458.89 kB  | 122.52 kB  | 126.71 kB  | bundle.min.js
+1.01 MB    | 440.94 kB  | 458.89 kB  | 122.52 kB  | 126.71 kB  | bundle.min.js
 
-1.25 MB    | 650.33 kB  | 646.76 kB  | 160.96 kB  | 163.73 kB  | three.js  
+1.25 MB    | 650.34 kB  | 646.76 kB  | 160.96 kB  | 163.73 kB  | three.js  
 
-2.14 MB    | 717.02 kB  | 724.14 kB  | 162.02 kB  | 181.07 kB  | victory.js
+2.14 MB    | 717.04 kB  | 724.14 kB  | 162.02 kB  | 181.07 kB  | victory.js
 
-3.20 MB    | 1.01 MB    | 1.01 MB    | 324.33 kB  | 331.56 kB  | echarts.js
+3.20 MB    | 1.01 MB    | 1.01 MB    | 324.34 kB  | 331.56 kB  | echarts.js
 
-6.69 MB    | 2.28 MB    | 2.31 MB    | 467.74 kB  | 488.28 kB  | antd.js   
+6.69 MB    | 2.28 MB    | 2.31 MB    | 467.77 kB  | 488.28 kB  | antd.js   
 
-10.95 MB   | 3.36 MB    | 3.49 MB    | 861.78 kB  | 915.50 kB  | typescript.js
+10.95 MB   | 3.36 MB    | 3.49 MB    | 861.80 kB  | 915.50 kB  | typescript.js