diff --git a/include/simdjson/haswell/begin.h b/include/simdjson/haswell/begin.h
index 1be8c192c..2a245cdc2 100644
--- a/include/simdjson/haswell/begin.h
+++ b/include/simdjson/haswell/begin.h
@@ -4,8 +4,14 @@
 #include "simdjson/haswell/intrinsics.h"
 
 #if !SIMDJSON_CAN_ALWAYS_RUN_HASWELL
+// We enable bmi2 only if LLVM/clang is used, because GCC may not
+// make good use of it. See https://github.com/simdjson/simdjson/pull/2243
+#if defined(__clang__)
+SIMDJSON_TARGET_REGION("avx2,bmi,bmi2,pclmul,lzcnt,popcnt")
+#else
 SIMDJSON_TARGET_REGION("avx2,bmi,pclmul,lzcnt,popcnt")
 #endif
+#endif
 
 #include "simdjson/haswell/bitmanipulation.h"
 #include "simdjson/haswell/bitmask.h"