diff --git a/mongoose.c b/mongoose.c
index 141e5017..14a9218f 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -10093,7 +10093,7 @@ int mg_sock_addr_to_str(const union socket_address *sa, char *buf, size_t len,
       goto cleanup;
     }
 #else
-    if (inet_ntop(AF_INET, (void *) &sa->sin.sin_addr, buf, len - 1) == NULL) {
+    if (inet_ntop(AF_INET, (void *) &sa->sin.sin_addr, buf, len) == NULL) {
       goto cleanup;
     }
 #endif
diff --git a/src/mg_util.c b/src/mg_util.c
index 485ba276..95246a8d 100644
--- a/src/mg_util.c
+++ b/src/mg_util.c
@@ -144,7 +144,7 @@ int mg_sock_addr_to_str(const union socket_address *sa, char *buf, size_t len,
       goto cleanup;
     }
 #else
-    if (inet_ntop(AF_INET, (void *) &sa->sin.sin_addr, buf, len - 1) == NULL) {
+    if (inet_ntop(AF_INET, (void *) &sa->sin.sin_addr, buf, len) == NULL) {
       goto cleanup;
     }
 #endif