diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index 34cce729109cc..cf93b662a385a 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -357,7 +357,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
-#ifdef ACPI_APPLICATION
+#if defined (ACPI_APPLICATION) || defined(ACPI_LIBRARY)
 #include <stdio.h>
 #include <fcntl.h>
 #include <errno.h>