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-rw-r--r--src/vmime/security/cert/X509Certificate.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/vmime/security/cert/X509Certificate.hpp b/src/vmime/security/cert/X509Certificate.hpp
index d816646b..edc04816 100644
--- a/src/vmime/security/cert/X509Certificate.hpp
+++ b/src/vmime/security/cert/X509Certificate.hpp
@@ -106,7 +106,7 @@ public:
*
* @return distinguished name of the certificate issuer, as a string
*/
- const string getIssuerString() const;
+ virtual const string getIssuerString() const = 0;
/** Checks if this certificate has the given issuer.
*