diff --git a/src/compile.rs b/src/compile.rs
index a13d361..aafab37 100644
--- a/src/compile.rs
+++ b/src/compile.rs
@@ -1303,11 +1303,9 @@ impl<O: OutputStream> Compiler<O> {
                             self.emit(Instruction::Pop);
                         }
                         if let Some(false_label) = false_label {
-                            self.emit(Instruction::Duplicate);
                             self.emit(Instruction::JumpIfFalse {
                                 target: false_label,
                             });
-                            self.emit(Instruction::Pop);
                         }
                     }
                 }