diff --git a/source/src/main.cpp b/source/src/main.cpp
index 0c2e8309..bfa195e3 100644
--- a/source/src/main.cpp
+++ b/source/src/main.cpp
@@ -209,7 +209,7 @@ void bmp_screenshot(char *imagepath)
         const char *timestr = maketimestr();
         if(!timestr) return;
         static string buf;
-        s_sprintf(buf)("screenshots/%s.jpg", timestr);
+        s_sprintf(buf)("screenshots/%s.bmp", timestr);
         imagepath = buf;
     }