diff --git a/libfprint/nbis/mindtct/log.c b/libfprint/nbis/mindtct/log.c
index b1dcaad..dcd3db7 100644
--- a/libfprint/nbis/mindtct/log.c
+++ b/libfprint/nbis/mindtct/log.c
@@ -66,7 +66,7 @@ of the software.
 
 /***************************************************************************/
 /***************************************************************************/
-int open_logfile()
+int open_logfile(void)
 {
 #ifdef LOG_REPORT
       fprintf(stderr, "ERROR : open_logfile : fopen : %s\n", LOG_FILE);
@@ -91,7 +91,7 @@ void print2log(char *fmt, ...)
 
 /***************************************************************************/
 /***************************************************************************/
-int close_logfile()
+int close_logfile(void)
 {
 #ifdef LOG_REPORT
       fprintf(stderr, "ERROR : close_logfile : fclose : %s\n", LOG_FILE);
diff --git a/libfprint/nbis/update-from-nbis.sh b/libfprint/nbis/update-from-nbis.sh
index c8cde80..742c8cb 100755
--- a/libfprint/nbis/update-from-nbis.sh
+++ b/libfprint/nbis/update-from-nbis.sh
@@ -179,9 +179,13 @@ sed -i 's/[ \t]*$//' `find -name "*.[ch]"`
 # Remove usebsd.h
 sed -i '/usebsd.h/d' `find -name "*.[ch]"`
 
+# Replace functions with empty parameters using (void)
+sed -i 's/^\([[:space:]]*[[:alnum:]_]\+[\*[:space:]]\+'\
+'[[:alnum:]_]\+[[:space:]]*\)([[:space:]]*)/\1(void)/g' `find -name "*.[ch]"`
+
 # Use GLib memory management
 spatch --sp-file glib-memory.cocci --dir . --in-place
 
 # The above leaves an unused variable around, triggering a warning
 # remove it.
-patch -p0 < glib-mem-warning.patch
\ No newline at end of file
+patch -p0 < glib-mem-warning.patch