diff --git a/include/decl.h b/include/decl.h
index 0121d4ef2..108f5d8a0 100644
--- a/include/decl.h
+++ b/include/decl.h
@@ -1179,5 +1179,3 @@ extern const struct const_globals cg;
 extern struct obj hands_obj;
 
 #endif /* DECL_H */
-
-
diff --git a/include/tradstdc.h b/include/tradstdc.h
index 7467e16a2..c5a9368fb 100644
--- a/include/tradstdc.h
+++ b/include/tradstdc.h
@@ -381,6 +381,7 @@ typedef genericptr genericptr_t; /* (void *) or (char *) */
 #define NONNULLARG3 __attribute__((nonnull (3)))
 #define NONNULLARG4 __attribute__((nonnull (4)))
 #define NONNULLARG5 __attribute__((nonnull (5)))
+#define NONNULLARG6 __attribute__((nonnull (6)))
 #define NONNULLARG7 __attribute__((nonnull (7))) /* for bhit() */
 #define NONNULLARG12 __attribute__((nonnull (1, 2)))
 #define NONNULLARG23 __attribute__((nonnull (2, 3)))
@@ -427,6 +428,7 @@ typedef genericptr genericptr_t; /* (void *) or (char *) */
 #define NONNULLARG3
 #define NONNULLARG4
 #define NONNULLARG5
+#define NONNULLARG6
 #define NONNULLARG7
 #define NONNULLARG12
 #define NONNULLARG23
diff --git a/src/decl.c b/src/decl.c
index 7102e3438..be1826fdf 100644
--- a/src/decl.c
+++ b/src/decl.c
@@ -1095,4 +1095,5 @@ sa_victual(
 {
     return;
 }
+
 /*decl.c*/