diff --git a/src/crypto/crypto_openssl.c b/src/crypto/crypto_openssl.c
index c6e065f82..c5bfcae68 100644
--- a/src/crypto/crypto_openssl.c
+++ b/src/crypto/crypto_openssl.c
@@ -25,6 +25,7 @@
 #include <openssl/provider.h>
 #include <openssl/core_names.h>
 #include <openssl/param_build.h>
+#include <openssl/rsa.h>
 #else /* OpenSSL version >= 3.0 */
 #include <openssl/cmac.h>
 #endif /* OpenSSL version >= 3.0 */