5 files changed, 6 insertions, 6 deletions
diff --git a/src/lib/ffi/ffi_util.h b/src/lib/ffi/ffi_util.h
index e49002e62..9ff1b0e2f 100644
--- a/src/lib/ffi/ffi_util.h
+++ b/src/lib/ffi/ffi_util.h
@@ -15,7 +15,7 @@
 
 namespace Botan_FFI {
 
-class FFI_Error final : public Botan::Exception
+class BOTAN_UNSTABLE_API FFI_Error final : public Botan::Exception
    {
    public:
       explicit FFI_Error(const std::string& what) : Exception("FFI error", what) {}
diff --git a/src/lib/prov/openssl/openssl.h b/src/lib/prov/openssl/openssl.h
index 89bd0b1a7..2cb581bb3 100644
--- a/src/lib/prov/openssl/openssl.h
+++ b/src/lib/prov/openssl/openssl.h
@@ -30,7 +30,7 @@ class HashFunction;
 class RandomNumberGenerator;
 enum Cipher_Dir : int;
 
-class OpenSSL_Error final : public Exception
+class BOTAN_PUBLIC_API(2,0) OpenSSL_Error final : public Exception
    {
    public:
       OpenSSL_Error(const std::string& what) :
diff --git a/src/lib/prov/pkcs11/p11.h b/src/lib/prov/pkcs11/p11.h
index 50294d214..a1f85af45 100644
--- a/src/lib/prov/pkcs11/p11.h
+++ b/src/lib/prov/pkcs11/p11.h
@@ -2821,7 +2821,7 @@ class BOTAN_PUBLIC_API(2,0) LowLevel
       const FunctionListPtr m_func_list_ptr;
    };
 
-class PKCS11_Error : public Exception
+class BOTAN_PUBLIC_API(2,0) PKCS11_Error : public Exception
    {
    public:
       explicit PKCS11_Error(const std::string& what) :
@@ -2830,7 +2830,7 @@ class PKCS11_Error : public Exception
          }
    };
 
-class PKCS11_ReturnError final : public PKCS11_Error
+class BOTAN_PUBLIC_API(2,0) PKCS11_ReturnError final : public PKCS11_Error
    {
    public:
       explicit PKCS11_ReturnError(ReturnValue return_val) :
diff --git a/src/lib/prov/tpm/tpm.h b/src/lib/prov/tpm/tpm.h
index 802634056..bb215a476 100644
--- a/src/lib/prov/tpm/tpm.h
+++ b/src/lib/prov/tpm/tpm.h
@@ -21,7 +21,7 @@
 
 namespace Botan {
 
-class TPM_Error final : public Exception
+class BOTAN_PUBLIC_API(2,0) TPM_Error final : public Exception
    {
    public:
       TPM_Error(const std::string& err) : Exception(err) {}
diff --git a/src/lib/utils/safeint.h b/src/lib/utils/safeint.h
index 86567db72..377f13418 100644
--- a/src/lib/utils/safeint.h
+++ b/src/lib/utils/safeint.h
@@ -13,7 +13,7 @@
 
 namespace Botan {
 
-class Integer_Overflow_Detected final : public Exception
+class BOTAN_PUBLIC_API(2,0) Integer_Overflow_Detected final : public Exception
    {
    public:
       Integer_Overflow_Detected(const std::string& file, int line) :