diff --git a/Makefile b/Makefile
index e354c31..b7bce98 100644
--- a/Makefile
+++ b/Makefile
@@ -29,7 +29,7 @@ RUSTC ?= rustc
 RUSTLIBS = --extern getopt=build/o/libgetopt.rlib \
 	--extern sysexits=build/o/libsysexits.rlib \
 	--extern strerror=build/o/libstrerror.rlib
-CFLAGS += -I$(SYSEXITS) -Iinclude
+CFLAGS += -I$(SYSEXITS)
 
 .PHONY: all
 all: dj false fileis fop hru intcmp mm npc rpn scrut str strcmp swab true
diff --git a/include/libfileis.h b/include/libfileis.h
deleted file mode 100644
index 91426f9..0000000
--- a/include/libfileis.h
+++ /dev/null
@@ -1,14 +0,0 @@
-int fileis_block  (char *fn);
-int fileis_char   (char *fn);
-int fileis_dir    (char *fn);
-/*  fileis_exec   (char *fn); */
-int fileis_exists (char *fn);
-int fileis_fifo   (char *fn);
-int fileis_setgid (char *fn);
-int fileis_link   (char *fn);
-/*  fileis_read   (char *fn); */
-int fileis_regular(char *fn);
-int fileis_socket (char *fn);
-int fileis_setuid (char *fn);
-int fileis_vtx    (char *fn);
-/*  fileis_write  (char *fn); */