diff --git a/configure.ac b/configure.ac
index 6a4a18e9..fbb5c5d8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -142,7 +142,7 @@ AC_CHECK_HEADERS([ctype.h fcntl.h libgen.h libintl.h limits.h locale.h \
 	endian.h byteswap.h sys/byteorder.h sys/endian.h sys/param.h \
 	sys/ioctl.h sys/mount.h sys/stat.h sys/types.h sys/vfs.h \
 	sys/statvfs.h sys/sysmacros.h linux/major.h linux/fd.h linux/hdreg.h \
-	machine/endian.h gcrypt.h windows.h gnutls/pkcs12.h syslog.h])
+	machine/endian.h windows.h syslog.h])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_HEADER_STDBOOL