diff --git a/code/game/gamemodes/events/holidays/holidays.dm b/code/game/gamemodes/events/holidays/holidays.dm
index c305b51a8fc..bb60c905d01 100644
--- a/code/game/gamemodes/events/holidays/holidays.dm
+++ b/code/game/gamemodes/events/holidays/holidays.dm
@@ -97,6 +97,7 @@ var/global/Holiday = null
 					if(prob(50))				Holiday = "DPRA Liberation Day"
 				if(7)							Holiday = "Dominian Founding Day"
 				if(16)							Holiday = "Lunarian Apollo Day"
+				if(17)							Holiday = "Solarian Reunification Day"
 				if(29)							Holiday = "Dominian Victory Day"
 
 
diff --git a/html/changelogs/tag103-risingsun.yml b/html/changelogs/tag103-risingsun.yml
new file mode 100644
index 00000000000..ea5e524c1ff
--- /dev/null
+++ b/html/changelogs/tag103-risingsun.yml
@@ -0,0 +1,6 @@
+author: Tag103
+
+delete-after: True
+
+changes:
+  - rscadd: "Added Reunification Day, celebrated on July 17, to the holiday system."