diff --git a/src/Makefile.am b/src/Makefile.am
index d6257b9..a7f9547 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -20,7 +20,7 @@ ejabberdauth_SOURCES = main.c eport.c tls.c imap.c smtp.c
 ejabberdauth_LDADD = $(LIBS) $(OPENSSL_LIBS)
 
 if BUILD_TESTS
-testimap_SOURCES = tls.c imap.c tests/testimap.c
+testimap_SOURCES = tls.c imap.c tests/testimap.c tests/misc.c
 
 testimap_LDADD = $(LIBS) $(OPENSSL_LIBS)
 endif
diff --git a/src/tests/misc.c b/src/tests/misc.c
new file mode 100644
index 0000000..823ca83
--- /dev/null
+++ b/src/tests/misc.c
@@ -0,0 +1,41 @@
+/*
+ * ejabberd external authentication program
+ *
+ * (c) Alexander Vdolainen 2013, 2018, 2019, 2021 <alex@vapaa.xyz>
+ *
+ * this is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * this is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.";
+ *
+ */
+
+#include <string.h>
+
+int ejda_username_split(char *buf, char **user, char **domain)
+{
+  char *u, *d;
+
+  if(!buf) return 1;
+
+  u = strchr(buf, '@');
+  if(!u) return 1;
+  else {
+    *u = '\0';
+    *u++;
+    d = u; u = buf;
+  }
+
+  *user = u; *domain = d;
+
+  return 0;
+}
+
diff --git a/src/tests/testimap.c b/src/tests/testimap.c
index 21dacc9..679db68 100644
--- a/src/tests/testimap.c
+++ b/src/tests/testimap.c
@@ -60,24 +60,7 @@ static void print_help(const char *cname)
   return;
 }
 
-static int ejda_username_split(char *buf, char **user, char **domain)
-{
-  char *u, *d;
-
-  if(!buf) return 1;
-
-  u = strchr(buf, '@');
-  if(!u) return 1;
-  else {
-    *u = '\0';
-    *u++;
-    d = u; u = buf;
-  }
-
-  *user = u; *domain = d;
-
-  return 0;
-}
+extern int ejda_username_split(char *buf, char **user, char **domain);
 
 int main(int argc, char **argv)
 {