diff --git a/core/qthelper.cpp b/core/qthelper.cpp
index a4187747b..889d08b60 100644
--- a/core/qthelper.cpp
+++ b/core/qthelper.cpp
@@ -1617,15 +1617,6 @@ void parse_seabear_header(const char *filename, struct xml_params *params)
 	f.close();
 }
 
-char *intdup(int index)
-{
-	char tmpbuf[21];
-
-	snprintf(tmpbuf, sizeof(tmpbuf) - 2, "%d", index);
-	tmpbuf[20] = 0;
-	return strdup(tmpbuf);
-}
-
 extern "C" void print_qt_versions()
 {
 	printf("%s\n", qPrintable(QStringLiteral("built with Qt Version %1, runtime from Qt Version %2").arg(QT_VERSION_STR).arg(qVersion())));
diff --git a/core/qthelper.h b/core/qthelper.h
index 4e4b300a7..c53b185a2 100644
--- a/core/qthelper.h
+++ b/core/qthelper.h
@@ -45,7 +45,6 @@ extern const QStringList videoExtensionsList;
 QStringList mediaExtensionFilters();
 QStringList imageExtensionFilters();
 QStringList videoExtensionFilters();
-char *intdup(int index);
 char *copy_qstring(const QString &);
 QString get_depth_string(depth_t depth, bool showunit = false, bool showdecimal = true);
 QString get_depth_string(int mm, bool showunit = false, bool showdecimal = true);