diff --git a/libc/decl/errno_values.h b/libc/decl/errno_values.h
index 6cd8fdad..1a02b4e2 100644
--- a/libc/decl/errno_values.h
+++ b/libc/decl/errno_values.h
@@ -42,6 +42,7 @@
 #define EXDEV 50
 #define ESPIPE 51
 #define ENAMETOOLONG 52
+#define ELOOP 53
 
 #define EOPNOTSUPP ENOTSUP
 
diff --git a/libc/strerror.cpp b/libc/strerror.cpp
index 5883d37e..720c51dc 100644
--- a/libc/strerror.cpp
+++ b/libc/strerror.cpp
@@ -71,6 +71,7 @@ extern "C" const char* sortix_strerror(int errnum)
 	case EXDEV: return "Improper link";
 	case ESPIPE: return "Cannot seek on stream";
 	case ENAMETOOLONG: return "Filename too long";
+	case ELOOP: return "Too many levels of symbolic links";
 	default: return "Unknown error condition";
 	}
 }