diff --git a/src/lib.rs b/src/lib.rs
index 5d6a458..36ea850 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1240,7 +1240,7 @@ impl Literal {
     // representation. This is not public API other than for quote.
     #[doc(hidden)]
     pub unsafe fn from_str_unchecked(repr: &str) -> Self {
-        Literal::_new(imp::Literal::from_str_unchecked(repr))
+        Literal::_new(unsafe { imp::Literal::from_str_unchecked(repr) })
     }
 }
 
diff --git a/src/wrapper.rs b/src/wrapper.rs
index 37fdf37..a5d49b5 100644
--- a/src/wrapper.rs
+++ b/src/wrapper.rs
@@ -762,7 +762,7 @@ impl Literal {
         if inside_proc_macro() {
             Literal::Compiler(proc_macro::Literal::from_str(repr).expect("invalid literal"))
         } else {
-            Literal::Fallback(fallback::Literal::from_str_unchecked(repr))
+            Literal::Fallback(unsafe { fallback::Literal::from_str_unchecked(repr) })
         }
     }