diff --git a/src/decallib.cpp b/src/decallib.cpp
index 5d24e44d5..7bfdfc3e7 100644
--- a/src/decallib.cpp
+++ b/src/decallib.cpp
@@ -1232,6 +1232,7 @@ DThinker *FDecalStretcherAnim::CreateThinker (DBaseDecal *actor, side_t *wall) c
 	}
 	else
 	{
+		thinker->GoalX = 0;
 		thinker->bStretchX = false;
 	}
 	if (GoalY >= 0)
@@ -1241,6 +1242,7 @@ DThinker *FDecalStretcherAnim::CreateThinker (DBaseDecal *actor, side_t *wall) c
 	}
 	else
 	{
+		thinker->GoalY = 0;
 		thinker->bStretchY = false;
 	}
 	thinker->bStarted = false;