X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/0bfb53a23531bea3aaeadcd1a6f6c372eef96612..75b0dbe98e53c962cc00d7487a0a38ed2ff7c105:/h/nmh.h

diff --git a/h/nmh.h b/h/nmh.h
index 3b91e2c3..b2bac8f0 100644
--- a/h/nmh.h
+++ b/h/nmh.h
@@ -10,6 +10,10 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <ctype.h>
+#ifndef NDEBUG
+  /* See etc/gen-ctype-checked.c. */
+# include <sbr/ctype-checked.h>
+#endif
 #include <sys/stat.h>
 
 # include <dirent.h>