diff --git a/src/crypto/OCSP.cpp b/src/crypto/OCSP.cpp
index 86262053d..5f9a4d1a7 100644
--- a/src/crypto/OCSP.cpp
+++ b/src/crypto/OCSP.cpp
@@ -92,6 +92,8 @@ OCSP::OCSP(const X509Cert &cert, const X509Cert &issuer, const std::string &user
         THROW("Failed to send OCSP request");
     const auto *p2 = (const unsigned char*)result.content.c_str();
     resp.reset(d2i_OCSP_RESPONSE(nullptr, &p2, long(result.content.size())));
+    if(!resp)
+        THROW_OPENSSLEXCEPTION("Failed to parse OCSP response.");
 
     switch(int respStatus = OCSP_response_status(resp.get()))
     {