diff --git a/src/SPC/builder/unix/library/ngtcp2.php b/src/SPC/builder/unix/library/ngtcp2.php
index 0c75bba4..20620499 100644
--- a/src/SPC/builder/unix/library/ngtcp2.php
+++ b/src/SPC/builder/unix/library/ngtcp2.php
@@ -44,5 +44,6 @@ trait ngtcp2
             ->execWithEnv("make -j{$this->builder->concurrency}")
             ->execWithEnv('make install DESTDIR=' . BUILD_ROOT_PATH);
         $this->patchPkgconfPrefix(['libngtcp2.pc']);
+        $this->patchPkgconfPrefix(['libngtcp2_crypto_ossl.pc']);
     }
 }