diff --git a/src/utils/Obs.cpp b/src/utils/Obs.cpp
index f32e106a..3b11ebe9 100644
--- a/src/utils/Obs.cpp
+++ b/src/utils/Obs.cpp
@@ -18,6 +18,7 @@ with this program. If not, see <https://www.gnu.org/licenses/>
 */
 
 #include <inttypes.h>
+#include <algorithm>
 #include <QString>
 #include <obs-frontend-api.h>
 #include <util/config-file.h>