diff --git a/src/sparsehash/internal/hashtable-common.h b/src/sparsehash/internal/hashtable-common.h
index bac2b88..59c752c 100644
--- a/src/sparsehash/internal/hashtable-common.h
+++ b/src/sparsehash/internal/hashtable-common.h
@@ -51,7 +51,7 @@ _START_GOOGLE_NAMESPACE_
 
 template <bool> struct SparsehashCompileAssert { };
 #define SPARSEHASH_COMPILE_ASSERT(expr, msg) \
-  __attribute__((unused)) typedef SparsehashCompileAssert<(bool(expr))> msg[bool(expr) ? 1 : -1]
+  static_assert(bool(expr), #msg)
 
 namespace sparsehash_internal {