diff --git a/crypto/o_init.c b/crypto/o_init.c
index b1eef43..4fbb0e5 100644
--- a/crypto/o_init.c
+++ b/crypto/o_init.c
@@ -7,7 +7,7 @@
  * https://www.openssl.org/source/license.html
  */
 
-/* for secure_getenv */
+/* for ossl_safe_getenv */
 #define _GNU_SOURCE
 #include "e_os.h"
 #include <openssl/err.h>
@@ -21,6 +21,7 @@
 # include <openssl/rand.h>
 # include <openssl/fips.h>
 # include "crypto/fips.h"
+# include "internal/cryptlib.h"
 
 # define FIPS_MODE_SWITCH_FILE "/proc/sys/crypto/fips_enabled"
 
@@ -29,7 +30,7 @@ static void init_fips_mode(void)
     char buf[2] = "0";
     int fd;
 
-    if (secure_getenv("OPENSSL_FORCE_FIPS_MODE") != NULL) {
+    if (ossl_safe_getenv("OPENSSL_FORCE_FIPS_MODE") != NULL) {
         buf[0] = '1';
     } else if ((fd = open(FIPS_MODE_SWITCH_FILE, O_RDONLY)) >= 0) {
         while (read(fd, buf, sizeof(buf)) < 0 && errno == EINTR) ;