diff --git a/source/platform/pfishhk.cpp b/source/platform/pfishhk.cpp
index 2852f9184..a65bf612d 100644
--- a/source/platform/pfishhk.cpp
+++ b/source/platform/pfishhk.cpp
@@ -38,6 +38,9 @@ void CNpcFishHookPlatform::postInit()
 	m_isShuttingDown = false;
 	m_lineBase.vx = Pos.vx;
 	m_lineBase.vy = 0;
+
+	sBBox boundingBox = m_modelGfx->GetBBox();
+	setCollisionCentreOffset( ( boundingBox.XMax + boundingBox.XMin ) >> 1, boundingBox.YMin + 15 );
 }
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
diff --git a/source/platform/platform.cpp b/source/platform/platform.cpp
index cc7a05f2c..6c34b66fe 100644
--- a/source/platform/platform.cpp
+++ b/source/platform/platform.cpp
@@ -478,7 +478,7 @@ void CNpcPlatform::postInit()
 {
 	sBBox boundingBox = m_modelGfx->GetBBox();
 	setCollisionSize( ( boundingBox.XMax - boundingBox.XMin ), ( boundingBox.YMax - boundingBox.YMin ) );
-	setCollisionCentreOffset( ( boundingBox.XMax + boundingBox.XMin ) >> 1, ( boundingBox.YMax + boundingBox.YMin ) >> 1 );
+	setCollisionCentreOffset( ( boundingBox.XMax + boundingBox.XMin ) >> 1, boundingBox.YMin );
 
 	if ( m_type == NPC_LINEAR_PLATFORM )
 	{
diff --git a/source/platform/ppendulm.cpp b/source/platform/ppendulm.cpp
index 8e4900e7d..19fbf2294 100644
--- a/source/platform/ppendulm.cpp
+++ b/source/platform/ppendulm.cpp
@@ -38,6 +38,9 @@ void CNpcPendulumPlatform::postInit()
 	m_heading = 1024;
 	m_lineBase.vx = Pos.vx;
 	m_lineBase.vy = 0;
+
+	sBBox boundingBox = m_modelGfx->GetBBox();
+	setCollisionCentreOffset( ( boundingBox.XMax + boundingBox.XMin ) >> 1, boundingBox.YMin + 15 );
 }
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////