1 files changed, 5 insertions, 0 deletions
diff --git a/source/compiler/aslascii.c b/source/compiler/aslascii.c
index 7ff1c4a653c7c..f164e98f5edf9 100644
--- a/source/compiler/aslascii.c
+++ b/source/compiler/aslascii.c
@@ -177,6 +177,11 @@ FlCheckForAscii (
     /* Open file in text mode so file offset is always accurate */
 
     Handle = fopen (Filename, "rb");
+    if (!Handle)
+    {
+        perror ("Could not open input file");
+        return (AE_ERROR);
+    }
 
     Status.Line = 1;
     Status.Offset = 0;