diff --git a/lib/std/net/socket_private.c3 b/lib/std/net/socket_private.c3
index 2a8bfff03..87ca95faf 100644
--- a/lib/std/net/socket_private.c3
+++ b/lib/std/net/socket_private.c3
@@ -75,7 +75,7 @@ fn Socket? connect_with_timeout_from_addrinfo(AddrInfo* addrinfo, SocketOption[]
 			{
 				c = clock::now();
 			}
-			Poll poll_request = { sockfd, SUBSCRIBE_ANY_WRITE, 0 };
+			Poll poll_request = { sockfd, SUBSCRIBE_ANY_WRITE, (PollEvent)0 };
 			if (!poll((&poll_request)[:1], timeout_left)!)
 			{
 				return CONNECTION_TIMED_OUT~;
diff --git a/releasenotes.md b/releasenotes.md
index f85beed82..766c19abb 100644
--- a/releasenotes.md
+++ b/releasenotes.md
@@ -41,6 +41,7 @@
 - Improved underlining errors/warnings when unicode is used. #2887 
 - Fix std::io::Formatter integer issue for large uint128 decimal values.
 - `--safe=no` disabled compile-time errors on compile-time known runtime @require checks #2936
+- On assert known false, the message was not show for no-args.
 
 ## 0.7.9 Change list
 
diff --git a/src/compiler/sema_decls.c b/src/compiler/sema_decls.c
index 0efd8e718..96085110f 100644
--- a/src/compiler/sema_decls.c
+++ b/src/compiler/sema_decls.c
@@ -46,8 +46,6 @@ static bool sema_analyse_variable_type(SemaContext *context, Type *type, SourceS
 static inline bool sema_analyse_alias(SemaContext *context, Decl *decl, bool *erase_decl);
 static inline bool sema_analyse_typedef(SemaContext *context, Decl *decl, bool *erase_decl);
 
-static CompilationUnit *unit_copy_for_generic(Module *module, CompilationUnit *unit);
-
 static inline bool sema_resolve_align_expr(SemaContext *context, Expr *expr, AlignSize *result)
 {
 	if (!sema_analyse_expr_rvalue(context, expr)) return false;
@@ -4681,7 +4679,7 @@ static bool sema_analyse_variable_type(SemaContext *context, Type *type, SourceS
 /**
  * Analyse $foo and $Foo variables.
  */
-bool sema_analyse_var_decl_ct(SemaContext *context, Decl *decl, bool *check_failed)
+bool sema_analyse_var_decl_ct(SemaContext *context, Decl *decl, bool *check_defined)
 {
 	Expr *init;
 	ASSERT(decl->decl_kind == DECL_VAR && "Should only be called on variables.");
@@ -4711,7 +4709,7 @@ bool sema_analyse_var_decl_ct(SemaContext *context, Decl *decl, bool *check_fail
 				// If this isn't a type, it's an error.
 				if (!expr_is_const_typeid(init))
 				{
-					if (check_failed) goto FAIL_CHECK;
+					if (check_defined) goto FAIL_CHECK;
 					SEMA_ERROR(decl->var.init_expr, "Expected a type assigned to %s.", decl->name);
 					goto FAIL;
 				}
@@ -4731,7 +4729,7 @@ bool sema_analyse_var_decl_ct(SemaContext *context, Decl *decl, bool *check_fail
 				{
 					if (type_is_inferred(decl->type))
 					{
-						if (check_failed) goto FAIL_CHECK;
+						if (check_defined) goto FAIL_CHECK;
 						SEMA_ERROR(type_info, "No size could be inferred.");
 						goto FAIL;
 					}
@@ -4762,7 +4760,7 @@ bool sema_analyse_var_decl_ct(SemaContext *context, Decl *decl, bool *check_fail
 				// Check that it is constant.
 				if (!expr_is_runtime_const(init))
 				{
-					if (check_failed) goto FAIL_CHECK;
+					if (check_defined) goto FAIL_CHECK;
 					SEMA_ERROR(init, "Expected a constant expression assigned to %s.", decl->name);
 					goto FAIL;
 				}
@@ -4773,7 +4771,7 @@ bool sema_analyse_var_decl_ct(SemaContext *context, Decl *decl, bool *check_fail
 			{
 				if (init->expr_kind == EXPR_TYPEINFO)
 				{
-					if (check_failed) goto FAIL_CHECK;
+					if (check_defined) goto FAIL_CHECK;
 					SEMA_ERROR(init, "You can't assign a type to a regular compile time variable like '%s', but it would be allowed if the variable was a compile time type variable. Such a variable needs to have a type-like name, e.g. '$MyType'.", decl->name);
 					goto FAIL;
 				}
@@ -4781,7 +4779,7 @@ bool sema_analyse_var_decl_ct(SemaContext *context, Decl *decl, bool *check_fail
 				// Check it is constant.
 				if (!expr_is_runtime_const(init))
 				{
-					if (check_failed) goto FAIL_CHECK;
+					if (check_defined) goto FAIL_CHECK;
 					SEMA_ERROR(init, "Expected a constant expression assigned to %s.", decl->name);
 					goto FAIL;
 				}
@@ -4795,12 +4793,12 @@ bool sema_analyse_var_decl_ct(SemaContext *context, Decl *decl, bool *check_fail
 		default:
 			UNREACHABLE
 	}
-	if (check_failed) return true;
+	if (check_defined) return true;
 	return sema_add_local(context, decl);
 FAIL_CHECK:
-	if (check_failed)
+	if (check_defined)
 	{
-		*check_failed = true;
+		*check_defined = true;
 		return false;
 	}
 FAIL:
diff --git a/src/compiler/sema_stmts.c b/src/compiler/sema_stmts.c
index 67a6514f0..b47e8a843 100644
--- a/src/compiler/sema_stmts.c
+++ b/src/compiler/sema_stmts.c
@@ -111,6 +111,7 @@ static inline bool sema_analyse_assert_stmt(SemaContext *context, Ast *statement
 	{
 		if (!sema_analyse_ct_expr(context, message_expr)) return false;
 		if (!expr_is_const_string(message_expr)) RETURN_SEMA_ERROR(message_expr, "Expected a constant string as the error message.");
+
 		FOREACH(Expr *, e, statement->assert_stmt.args)
 		{
 			if (!sema_analyse_expr_rvalue(context, e)) return false;
@@ -137,6 +138,7 @@ static inline bool sema_analyse_assert_stmt(SemaContext *context, Ast *statement
 		}
 	}
 
+	// We might have `assert(false)` or `assert(true)`
 	CondResult result_no_resolve = COND_MISSING;
 	if (expr->resolve_status == RESOLVE_DONE && expr_is_const_bool(expr))
 	{
@@ -170,7 +172,7 @@ static inline bool sema_analyse_assert_stmt(SemaContext *context, Ast *statement
 			// Otherwise we print an error.
 			if (!context->active_scope.end_jump.active && !context->active_scope.is_dead)
 			{
-				if (message_expr && sema_cast_const(message_expr) && vec_size(statement->assert_stmt.args))
+				if (message_expr && sema_cast_const(message_expr) && !vec_size(statement->assert_stmt.args))
 				{
 					RETURN_SEMA_ERROR(expr, "%.*s", EXPAND_EXPR_STRING(message_expr));
 				}