diff --git a/common.hpp b/common.hpp
index 526506c..6409c69 100644
--- a/common.hpp
+++ b/common.hpp
@@ -4,14 +4,8 @@
 #include <string_view>
 #include <string>
 
-// Branch prediction hints
-#if defined(__GNUC__) || defined(__clang__)
 #define likely(x) __builtin_expect(!!(x), 1)
 #define unlikely(x) __builtin_expect(!!(x), 0)
-#else
-#define likely(x) (x)
-#define unlikely(x) (x)
-#endif
 
 using std::string_view;