diff --git a/Libraries/LibCrypto/OpenSSL.cpp b/Libraries/LibCrypto/OpenSSL.cpp
index ec01cc83670..e7b4a529cac 100644
--- a/Libraries/LibCrypto/OpenSSL.cpp
+++ b/Libraries/LibCrypto/OpenSSL.cpp
@@ -6,10 +6,27 @@
 
 #include <AK/ByteBuffer.h>
 #include <LibCrypto/OpenSSL.h>
+
+#include <openssl/bn.h>
 #include <openssl/evp.h>
 
 namespace Crypto {
 
+ErrorOr<OpenSSL_BN> OpenSSL_BN::create()
+{
+    return OpenSSL_BN(OPENSSL_TRY_PTR(BN_new()));
+}
+
+ErrorOr<OpenSSL_PKEY> OpenSSL_PKEY::create()
+{
+    return OpenSSL_PKEY(OPENSSL_TRY_PTR(EVP_PKEY_new()));
+}
+
+ErrorOr<OpenSSL_MD_CTX> OpenSSL_MD_CTX::create()
+{
+    return OpenSSL_MD_CTX(OPENSSL_TRY_PTR(EVP_MD_CTX_new()));
+}
+
 ErrorOr<OpenSSL_BN> unsigned_big_integer_to_openssl_bignum(UnsignedBigInteger const& integer)
 {
     auto bn = TRY(OpenSSL_BN::create());
diff --git a/Libraries/LibCrypto/OpenSSL.h b/Libraries/LibCrypto/OpenSSL.h
index 16047b00fe6..b14f6b0ff70 100644
--- a/Libraries/LibCrypto/OpenSSL.h
+++ b/Libraries/LibCrypto/OpenSSL.h
@@ -88,20 +88,14 @@ class OpenSSL_BN {
     OPENSSL_WRAPPER_CLASS(OpenSSL_BN, BIGNUM, BN);
 
 public:
-    static ErrorOr<OpenSSL_BN> create()
-    {
-        return OpenSSL_BN(OPENSSL_TRY_PTR(BN_new()));
-    }
+    static ErrorOr<OpenSSL_BN> create();
 };
 
 class OpenSSL_PKEY {
     OPENSSL_WRAPPER_CLASS(OpenSSL_PKEY, EVP_PKEY, EVP_PKEY);
 
 public:
-    static ErrorOr<OpenSSL_PKEY> create()
-    {
-        return OpenSSL_PKEY(OPENSSL_TRY_PTR(EVP_PKEY_new()));
-    }
+    static ErrorOr<OpenSSL_PKEY> create();
 };
 
 class OpenSSL_PKEY_CTX {
@@ -112,10 +106,7 @@ class OpenSSL_MD_CTX {
     OPENSSL_WRAPPER_CLASS(OpenSSL_MD_CTX, EVP_MD_CTX, EVP_MD_CTX);
 
 public:
-    static ErrorOr<OpenSSL_MD_CTX> create()
-    {
-        return OpenSSL_MD_CTX(OPENSSL_TRY_PTR(EVP_MD_CTX_new()));
-    }
+    static ErrorOr<OpenSSL_MD_CTX> create();
 };
 
 #undef OPENSSL_WRAPPER_CLASS