diff --git a/code/__defines/math.dm b/code/__defines/math.dm
index f3ad19e1093..f4539605f22 100644
--- a/code/__defines/math.dm
+++ b/code/__defines/math.dm
@@ -28,8 +28,6 @@
 #define ROUND_UP(x) ( -round(-(x)))
 #define CEILING(x, y) ( -round(-(x) / (y)) * (y) )
 
-#define ROUND_UP(x) ( -round(-(x)))
-
 // round() acts like floor(x, 1) by default but can't handle other values
 #define FLOOR(x, y) ( round((x) / (y)) * (y) )
 
diff --git a/code/modules/ai/ai_holder.dm b/code/modules/ai/ai_holder.dm
index 7eef273d638..07186429cd3 100644
--- a/code/modules/ai/ai_holder.dm
+++ b/code/modules/ai/ai_holder.dm
@@ -64,7 +64,7 @@
 										// consider sleeping the AI instead.
 	var/process_flags = 0				// Where we're processing, see flag defines.
 	var/list/snapshot = null			// A list used in mass-editing of AI datums, holding a snapshot of the 'before' state
-	var/list/static/fastprocess_stances = list(
+	var/static/list/fastprocess_stances = list(
 		STANCE_ALERT,
 		STANCE_APPROACH,
 		STANCE_FIGHT,
@@ -75,7 +75,7 @@
 		STANCE_FLEE,
 		STANCE_DISABLED
 	)
-	var/list/static/noprocess_stances = list(
+	var/static/list/noprocess_stances = list(
 		STANCE_SLEEP
 	)
 
diff --git a/tools/ci/validate_files.sh b/tools/ci/validate_files.sh
index c0e3165a285..57c8b332f55 100755
--- a/tools/ci/validate_files.sh
+++ b/tools/ci/validate_files.sh
@@ -80,6 +80,13 @@ echo -e "${RED}DISABLED"
 #   FAILED=1
 # fi
 
+part "improperly pathed static lists"
+if $grep -i 'var/list/static/.*' $code_files; then
+	echo
+	echo -e "${RED}ERROR: Found incorrect static list definition 'var/list/static/', it should be 'var/static/list/' instead.${NC}"
+	st=1
+fi;
+
 part "changelog"
 #Checking for a change to html/changelogs/example.yml
 md5sum -c - <<< "ea467b7b75774b41ecdf35e07091d96f *html/changelogs/example.yml"