diff --git a/crates/typos-cli/src/file_type_specifics.rs b/crates/typos-cli/src/file_type_specifics.rs
index c93ab34..00fe1a9 100644
--- a/crates/typos-cli/src/file_type_specifics.rs
+++ b/crates/typos-cli/src/file_type_specifics.rs
@@ -7,6 +7,15 @@
 pub(crate) const NO_CHECK_TYPES: &[&str] = &["cert", "lock"];
 
 pub(crate) const TYPE_SPECIFIC_DICTS: &[(&str, StaticDictConfig)] = &[
+    (
+        "cpp",
+        StaticDictConfig {
+            ignore_idents: &[
+                "countr_one", // `std::countr_one`
+            ],
+            ignore_words: &[],
+        },
+    ),
     (
         "css",
         StaticDictConfig {
diff --git a/crates/typos-cli/tests/cmd/false-positives.in/sample.cpp b/crates/typos-cli/tests/cmd/false-positives.in/sample.cpp
new file mode 100644
index 0000000..40455b1
--- /dev/null
+++ b/crates/typos-cli/tests/cmd/false-positives.in/sample.cpp
@@ -0,0 +1,5 @@
+int main() {
+    uint8 i = 0;
+    std::countr_one(i);
+    return 0;
+}