diff --git a/newsfragments/4353.fixed.md b/newsfragments/4353.fixed.md
new file mode 100644
index 00000000000..73783479085
--- /dev/null
+++ b/newsfragments/4353.fixed.md
@@ -0,0 +1 @@
+fixed compile error due to c-string literals on Rust < 1.79
\ No newline at end of file
diff --git a/pyo3-build-config/src/lib.rs b/pyo3-build-config/src/lib.rs
index 2da3e56d3b6..0bc2274e0e5 100644
--- a/pyo3-build-config/src/lib.rs
+++ b/pyo3-build-config/src/lib.rs
@@ -143,7 +143,7 @@ pub fn print_feature_cfgs() {
         println!("cargo:rustc-cfg=invalid_from_utf8_lint");
     }
 
-    if rustc_minor_version >= 77 {
+    if rustc_minor_version >= 79 {
         println!("cargo:rustc-cfg=c_str_lit");
     }