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diff --git a/regress/misc/sk-dummy/sk-dummy.c b/regress/misc/sk-dummy/sk-dummy.c
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index dca158de..afdcb1d2 100644
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--- a/regress/misc/sk-dummy/sk-dummy.c
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+++ b/regress/misc/sk-dummy/sk-dummy.c
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@@ -71,7 +71,7 @@ skdebug(const char *func, const char *fmt, ...)
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 #endif
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 }
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-uint32_t
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+uint32_t __attribute__((visibility("default")))
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 sk_api_version(void)
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 {
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 	return SSH_SK_VERSION_MAJOR;
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@@ -220,7 +220,7 @@ check_options(struct sk_option **options)
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 	return 0;
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 }
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-int
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+int __attribute__((visibility("default")))
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 sk_enroll(uint32_t alg, const uint8_t *challenge, size_t challenge_len,
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     const char *application, uint8_t flags, const char *pin,
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     struct sk_option **options, struct sk_enroll_response **enroll_response)
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@@ -467,7 +467,7 @@ sig_ed25519(const uint8_t *message, size_t message_len,
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 	return ret;
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 }
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-int
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+int __attribute__((visibility("default")))
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 sk_sign(uint32_t alg, const uint8_t *data, size_t datalen,
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     const char *application, const uint8_t *key_handle, size_t key_handle_len,
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     uint8_t flags, const char *pin, struct sk_option **options,
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@@ -518,7 +518,7 @@ sk_sign(uint32_t alg, const uint8_t *message, size_t message_len,
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 	return ret;
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 }
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-int
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+int __attribute__((visibility("default")))
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 sk_load_resident_keys(const char *pin, struct sk_option **options,
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     struct sk_resident_key ***rks, size_t *nrks)
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 {