diff --git a/openssl-sys/build/cfgs.rs b/openssl-sys/build/cfgs.rs
index c74c2bb0..4dd919b1 100644
--- a/openssl-sys/build/cfgs.rs
+++ b/openssl-sys/build/cfgs.rs
@@ -58,6 +58,9 @@ pub fn get(openssl_version: Option<u64>, libressl_version: Option<u64>) -> Vec<&
         if openssl_version >= 0x1_01_01_02_0 {
             cfgs.push("ossl111b");
         }
+        if openssl_version >= 0x1_01_01_03_0 {
+            cfgs.push("ossl111c");
+        }
     }
 
     cfgs
diff --git a/openssl-sys/src/ssl.rs b/openssl-sys/src/ssl.rs
index 257d380b..0cad5aac 100644
--- a/openssl-sys/src/ssl.rs
+++ b/openssl-sys/src/ssl.rs
@@ -1314,7 +1314,11 @@ extern "C" {
 }
 
 cfg_if! {
-    if #[cfg(ossl110)] {
+    if #[cfg(ossl111c)] {
+        extern "C" {
+            pub fn SSL_session_reused(ssl: *const SSL) -> c_int;
+        }
+    } else if #[cfg(ossl110)] {
         extern "C" {
             pub fn SSL_session_reused(ssl: *mut SSL) -> c_int;
         }