1 files changed, 1 insertions, 1 deletions
diff --git a/src/main.c b/src/main.c
index fd4f34e..74074ce 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1865,7 +1865,7 @@ int main(int argc, char *argv[])
 		
 		gravity_update_async(); //Check for updated velocity maps from gravity thread
 		if (!sys_pause||framerender) //Only update if not paused
-			memset(gravmap, 0, sizeof(gravmap)); //Clear the old gravmap
+			memset(gravmap, 0, (XRES/CELL)*(YRES/CELL)*sizeof(float)); //Clear the old gravmap
 
 		if (framerender) {
 			framerender = 0;