diff --git a/libraries/AP_InternalError/AP_InternalError.h b/libraries/AP_InternalError/AP_InternalError.h
index c44b4134a9..4cbbb29043 100644
--- a/libraries/AP_InternalError/AP_InternalError.h
+++ b/libraries/AP_InternalError/AP_InternalError.h
@@ -112,4 +112,4 @@ extern "C" {
 }
 
 #define INTERNAL_ERROR(error_number) \
-    AP::internalerror().error(error_number, __LINE__);
+    AP::internalerror().error(error_number, __AP_LINE__);