diff --git a/util/nvramtool/common.c b/util/nvramtool/common.c
index 8ae6ea86f7..9b0a6b95ba 100644
--- a/util/nvramtool/common.c
+++ b/util/nvramtool/common.c
@@ -56,7 +56,7 @@ int get_line_from_file(FILE * f, char line[], int line_buf_size)
  *
  * We ran out of memory.  Print an error message and die.
  ****************************************************************************/
-void out_of_memory(void)
+_Noreturn void out_of_memory(void)
 {
 	fprintf(stderr, "%s: Out of memory.\n", prog_name);
 	exit(1);
diff --git a/util/nvramtool/common.h b/util/nvramtool/common.h
index 559e80f12b..19ce5666a7 100644
--- a/util/nvramtool/common.h
+++ b/util/nvramtool/common.h
@@ -76,7 +76,7 @@ extern const char prog_name[];
 extern const char prog_version[];
 
 int get_line_from_file(FILE * f, char line[], int line_buf_size);
-void out_of_memory(void);
+_Noreturn void out_of_memory(void);
 void usage(FILE * outfile);
 
 #endif				/* COMMON_H */