diff --git a/src/window_research.c b/src/window_research.c
index bce8c52442..c0138a751e 100644
--- a/src/window_research.c
+++ b/src/window_research.c
@@ -378,7 +378,7 @@ static void window_research_development_paint()
 	y = w->y + window_research_development_widgets[WIDX_LAST_DEVELOPMENT_GROUP].top + 12;
 
 	uint32 typeId = RCT2_GLOBAL(0x01357CF4, uint32);
-	int latDevelopmentFormat;
+	int lastDevelopmentFormat;
 	if (typeId != 0xFFFFFFFF) {
 		if (typeId >= 0x10000) {
 			uint8 *rideEntry = RCT2_GLOBAL(0x009ACFA4 + (typeId & 0xFF) * 4, uint8*);
@@ -387,13 +387,13 @@ static void window_research_development_paint()
 			else
 				stringId = (typeId & 0xFF00) + 2;
 
-			latDevelopmentFormat = STR_RESEARCH_RIDE_LABEL;
+			lastDevelopmentFormat = STR_RESEARCH_RIDE_LABEL;
 		} else {
 			uint8 *sceneryEntry = RCT2_GLOBAL(0x009ADA90 + (typeId & 0xFFFF) * 4, uint8*);
 			stringId = RCT2_GLOBAL(sceneryEntry, uint16);
-			latDevelopmentFormat = STR_RESEARCH_SCENERY_LABEL;
+			lastDevelopmentFormat = STR_RESEARCH_SCENERY_LABEL;
 		}
-		gfx_draw_string_left_wrapped(dpi, &stringId, x, y, 266, latDevelopmentFormat, 0);
+		gfx_draw_string_left_wrapped(dpi, &stringId, x, y, 266, lastDevelopmentFormat, 0);
 	}
 }