diff --git a/lib/hcrypto/evp.c b/lib/hcrypto/evp.c
index 5e7c2e83f..70eab2ef9 100644
--- a/lib/hcrypto/evp.c
+++ b/lib/hcrypto/evp.c
@@ -44,7 +44,9 @@
 #include <evp.h>
 #include <evp-hcrypto.h>
 #include <evp-cc.h>
+#if _WIN32
 #include <evp-w32.h>
+#endif
 #include <evp-pkcs11.h>
 #include <evp-openssl.h>
 
diff --git a/lib/hcrypto/test_bulk.c b/lib/hcrypto/test_bulk.c
index 1abe41d81..3d5efe910 100644
--- a/lib/hcrypto/test_bulk.c
+++ b/lib/hcrypto/test_bulk.c
@@ -39,7 +39,9 @@
 #include <evp.h>
 #include <evp-hcrypto.h>
 #include <evp-cc.h>
+#if _WIN32
 #include <evp-w32.h>
+#endif
 #include <evp-pkcs11.h>
 #include <hex.h>
 #include <err.h>
diff --git a/lib/hcrypto/test_cipher.c b/lib/hcrypto/test_cipher.c
index 357e90e5b..b6b6c169a 100644
--- a/lib/hcrypto/test_cipher.c
+++ b/lib/hcrypto/test_cipher.c
@@ -41,7 +41,9 @@
 #include <evp.h>
 #include <evp-hcrypto.h>
 #include <evp-cc.h>
+#if _WIN32
 #include <evp-w32.h>
+#endif
 #include <evp-pkcs11.h>
 #include <evp-openssl.h>
 #include <hex.h>