diff --git a/openssl-sys/build/cfgs.rs b/openssl-sys/build/cfgs.rs
index 1634da6b..38bacdf3 100644
--- a/openssl-sys/build/cfgs.rs
+++ b/openssl-sys/build/cfgs.rs
@@ -25,6 +25,9 @@ pub fn get(openssl_version: Option<u64>, libressl_version: Option<u64>) -> Vec<&
         if openssl_version >= 0x1_00_02_00_0 {
             cfgs.push("ossl102");
         }
+        if openssl_version >= 0x1_00_02_06_0 {
+            cfgs.push("ossl102f");
+        }
         if openssl_version >= 0x1_00_02_08_0 {
             cfgs.push("ossl102h");
         }
diff --git a/openssl-sys/src/openssl/mod.rs b/openssl-sys/src/openssl/mod.rs
index b65b6129..51d45575 100644
--- a/openssl-sys/src/openssl/mod.rs
+++ b/openssl-sys/src/openssl/mod.rs
@@ -33,6 +33,7 @@ pub const SSL_OP_NO_DTLSv1: c_ulong = 0x04000000;
 #[cfg(ossl102)]
 pub const SSL_OP_NO_DTLSv1_2: c_ulong = 0x08000000;
 
+#[cfg(ossl102f)]
 pub const X509_V_ERR_UNSPECIFIED: c_int = 1;
 
 pub const CMS_TEXT: c_uint = 0x1;