diff --git a/Makefile b/Makefile
index 50105fc..a224c6c 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ VERSION = 0.1
 
 PREFIX = /usr/local
 
-CPPFLAGS_SROHTML = -DVERSION=\"${VERSION}\" ${CPPFLAGS}
+CPPFLAGS_SROHTML = -DBIN=\"${BIN}\" -DVERSION=\"${VERSION}\" ${CPPFLAGS}
 # debug
 #CFLAGS_SROHTML = -ggdb -ansi -pedantic ${CPPFLAGS_SROHTML} ${CLAGS}
 CFLAGS_SROHTML  = -Os -ansi -pedantic ${CPPFLAGS_SROHTML} ${CFLAGS}
diff --git a/srohtml.c b/srohtml.c
index 6639894..70aea12 100644
--- a/srohtml.c
+++ b/srohtml.c
@@ -602,7 +602,7 @@ main (int argc, char *argv[])
 
 	in = fopen(argv[1], "r");
 	if (in == NULL) {
-		fprintf(stderr, "Can't open %s.\n", argv[1]);
+		fprintf(stderr, BIN ": Can't open %s.\n", argv[1]);
 		return 1;
 	}
 
@@ -660,7 +660,7 @@ main (int argc, char *argv[])
 	else
 		out = fopen(argv[2], "w");
 	if (out == NULL) {
-		fprintf(stderr, "Can't open %s.\n", argv[2]);
+		fprintf(stderr, BIN ": Can't open %s.\n", argv[2]);
 		return 1;
 	}
 
@@ -788,7 +788,7 @@ safe_malloc(const size_t size)
 
 	ptr = malloc(size);
 	if (ptr == NULL) {
-		fprintf(stderr, "Can't allocate %lu bytes.\n", size);
+		fprintf(stderr, BIN ": Can't allocate %lu bytes.\n", size);
 		exit(1);
 	}
 
@@ -802,7 +802,7 @@ safe_realloc(void *ptr, const size_t size)
 
 	new = realloc(ptr, size);
 	if (new == NULL) {
-		fprintf(stderr, "Can't allocate %lu bytes.\n", size);
+		fprintf(stderr, BIN ": Can't allocate %lu bytes.\n", size);
 		exit(1);
 	}