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-rw-r--r--ffi/src/openpgp/fingerprint.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/ffi/src/openpgp/fingerprint.rs b/ffi/src/openpgp/fingerprint.rs
index 92696601..b2937f43 100644
--- a/ffi/src/openpgp/fingerprint.rs
+++ b/ffi/src/openpgp/fingerprint.rs
@@ -40,7 +40,7 @@ pub extern "system" fn sq_fingerprint_from_hex(hex: *const c_char)
/// Frees a sq_fingerprint_t.
#[no_mangle]
-pub extern "system" fn sq_fingerprint_free(fp: *mut Fingerprint) {
+pub extern "system" fn sq_fingerprint_free(fp: Option<&mut Fingerprint>) {
ffi_free!(fp)
}