diff --git a/regress/unittests/sshbuf/test_sshbuf_getput_fuzz.c b/regress/unittests/sshbuf/test_sshbuf_getput_fuzz.c
index 5de8707c4..3b4895895 100644
--- a/regress/unittests/sshbuf/test_sshbuf_getput_fuzz.c
+++ b/regress/unittests/sshbuf/test_sshbuf_getput_fuzz.c
@@ -15,11 +15,13 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef WITH_OPENSSL
 #include <openssl/bn.h>
 #include <openssl/objects.h>
 #ifdef OPENSSL_HAS_NISTP256
 # include <openssl/ec.h>
 #endif
+#endif
 
 #include "../test_helper/test_helper.h"
 #include "ssherr.h"
diff --git a/regress/unittests/sshkey/test_fuzz.c b/regress/unittests/sshkey/test_fuzz.c
index a583c4a57..2fae19dcf 100644
--- a/regress/unittests/sshkey/test_fuzz.c
+++ b/regress/unittests/sshkey/test_fuzz.c
@@ -18,6 +18,7 @@
 #include <string.h>
 #include <unistd.h>
 
+#ifdef WITH_OPENSSL
 #include <openssl/bn.h>
 #include <openssl/rsa.h>
 #include <openssl/dsa.h>
@@ -25,6 +26,7 @@
 #ifdef OPENSSL_HAS_NISTP256
 # include <openssl/ec.h>
 #endif
+#endif
 
 #include "../test_helper/test_helper.h"
 
diff --git a/regress/unittests/sshkey/test_sshkey.c b/regress/unittests/sshkey/test_sshkey.c
index 1f5da68b1..982907ce7 100644
--- a/regress/unittests/sshkey/test_sshkey.c
+++ b/regress/unittests/sshkey/test_sshkey.c
@@ -15,12 +15,14 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef WITH_OPENSSL
 #include <openssl/bn.h>
 #include <openssl/rsa.h>
 #include <openssl/dsa.h>
 #if defined(OPENSSL_HAS_ECC) && defined(OPENSSL_HAS_NISTP256)
 # include <openssl/ec.h>
 #endif
+#endif
 
 #include "../test_helper/test_helper.h"
 
diff --git a/regress/unittests/sshsig/tests.c b/regress/unittests/sshsig/tests.c
index c44a98079..fdc3baeb7 100644
--- a/regress/unittests/sshsig/tests.c
+++ b/regress/unittests/sshsig/tests.c
@@ -18,8 +18,10 @@
 #include <string.h>
 #include <unistd.h>
 
+#ifdef WITH_OPENSSL
 #include <openssl/evp.h>
 #include <openssl/crypto.h>
+#endif
 
 #include "ssherr.h"
 #include "authfile.h"