diff --git a/fold.c b/fold.c
index d327c62..4dfaf11 100644
--- a/fold.c
+++ b/fold.c
@@ -1,8 +1,10 @@
 /* See LICENSE file for copyright and license details. */
 #include <ctype.h>
+#include <errno.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 #include "text.h"
 #include "util.h"
@@ -45,8 +47,11 @@ main(int argc, char *argv[])
 	if(argc == 0) {
 		fold(stdin, width);
 	} else for(; argc > 0; argc--, argv++) {
-		if(!(fp = fopen(argv[0], "r")))
-			eprintf("fopen %s:", argv[0]);
+		if(!(fp = fopen(argv[0], "r"))) {
+			fprintf(stderr, "fopen %s: %s\n", argv[0],
+				strerror(errno));
+			continue;
+		}
 		fold(fp, width);
 		fclose(fp);
 	}
diff --git a/head.c b/head.c
index 8011151..6578f89 100644
--- a/head.c
+++ b/head.c
@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -33,8 +34,11 @@ main(int argc, char *argv[])
 	if(argc == 0) {
 		head(stdin, "<stdin>", n);
 	} else for(; argc > 0; argc--, argv++) {
-		if(!(fp = fopen(argv[0], "r")))
-			eprintf("fopen %s:", argv[0]);
+		if(!(fp = fopen(argv[0], "r"))) {
+			fprintf(stderr, "fopen %s: %s\n", argv[0],
+				strerror(errno));
+			continue;
+		}
 		head(fp, argv[0], n);
 		fclose(fp);
 	}