diff --git a/repos/libports/lib/mk/spark.mk b/repos/libports/lib/mk/spark.mk
index 3597742b9..bdc4e5944 100644
--- a/repos/libports/lib/mk/spark.mk
+++ b/repos/libports/lib/mk/spark.mk
@@ -15,7 +15,7 @@ SRC_ADS += system.ads \
 	   ada.ads \
 	   ada_exceptions.ads
 
-SRC_ADB += g-io.adb s-stalib.adb s-secsta.adb s-parame.adb i-c.adb
+SRC_ADB += g-io.adb s-stalib.adb s-secsta.adb s-parame.adb i-c.adb s-arit64.adb
 CUSTOM_ADA_FLAGS = --RTS=$(ADA_RTS) -c -gnatg -gnatp -gnatpg -gnatn2
 
 # C runtime glue code
diff --git a/repos/libports/ports/ada-runtime.hash b/repos/libports/ports/ada-runtime.hash
index 8b4e5319b..ede283f5e 100644
--- a/repos/libports/ports/ada-runtime.hash
+++ b/repos/libports/ports/ada-runtime.hash
@@ -1 +1 @@
-3306700040ccc016230b6fe4e9eae6949f0bb67a
+3bfde17bb063de40f07b9b99d7a89a9da1af6296
diff --git a/repos/libports/ports/ada-runtime.port b/repos/libports/ports/ada-runtime.port
index 219e87efa..f25ba73ae 100644
--- a/repos/libports/ports/ada-runtime.port
+++ b/repos/libports/ports/ada-runtime.port
@@ -3,7 +3,7 @@ VERSION   := 0
 DOWNLOADS := ada-runtime.git ada-runtime-alis.git
 
 URL(ada-runtime) := https://github.com/Componolit/ada-runtime.git
-REV(ada-runtime) := 2f6b93c6b7b29db2e2d3f20c345f5b9801e82ee9
+REV(ada-runtime) := 116876e3bd7125f4e7804e692c56f60be265ca79
 DIR(ada-runtime) := ada-runtime
 
 URL(ada-runtime-alis) := https://github.com/Componolit/ada-runtime-alis.git
diff --git a/repos/libports/recipes/src/spark/content.mk b/repos/libports/recipes/src/spark/content.mk
index 1066f3ae6..740b2a72e 100644
--- a/repos/libports/recipes/src/spark/content.mk
+++ b/repos/libports/recipes/src/spark/content.mk
@@ -11,6 +11,8 @@ MIRROR_FROM_ADA_RT_DIR := \
 		s-imgint.ads \
 		s-imgint.adb \
 		a-unccon.ads \
+		s-arit64.ads \
+		s-arit64.adb \
 		gnat.ads \
 		g-io.ads \
 		g-io.adb \