diff --git a/src/animation/AnimBlendClumpData.h b/src/animation/AnimBlendClumpData.h
index b953ee88..4043c778 100644
--- a/src/animation/AnimBlendClumpData.h
+++ b/src/animation/AnimBlendClumpData.h
@@ -19,7 +19,7 @@ struct AnimBlendFrameData
 #ifdef PED_SKIN
 	union {
 		RwFrame *frame;
-		RpHAnimStdKeyFrame *hanimFrame;
+		RpHAnimStdInterpFrame *hanimFrame;
 	};
 	int32 nodeID;
 #else
diff --git a/src/animation/FrameUpdate.cpp b/src/animation/FrameUpdate.cpp
index c119d479..faeea709 100644
--- a/src/animation/FrameUpdate.cpp
+++ b/src/animation/FrameUpdate.cpp
@@ -236,7 +236,7 @@ FrameUpdateCallBackSkinned(AnimBlendFrameData *frame, void *arg)
 	float transBlendAmount = 0.0f;
 	CQuaternion q, rot(0.0f, 0.0f, 0.0f, 0.0f);
 	float totalBlendAmount = 0.0f;
-	RpHAnimStdKeyFrame *xform = frame->hanimFrame;
+	RpHAnimStdInterpFrame *xform = frame->hanimFrame;
 	CAnimBlendNode **node;
 	AnimBlendFrameUpdateData *updateData = (AnimBlendFrameUpdateData*)arg;
 
@@ -297,7 +297,7 @@ FrameUpdateCallBackWithVelocityExtractionSkinned(AnimBlendFrameData *frame, void
 	float curx = 0.0f, cury = 0.0f;
 	float endx = 0.0f, endy = 0.0f;
 	bool looped = false;
-	RpHAnimStdKeyFrame *xform = frame->hanimFrame;
+	RpHAnimStdInterpFrame *xform = frame->hanimFrame;
 	CAnimBlendNode **node;
 	AnimBlendFrameUpdateData *updateData = (AnimBlendFrameUpdateData*)arg;
 
@@ -381,7 +381,7 @@ FrameUpdateCallBackWith3dVelocityExtractionSkinned(AnimBlendFrameData *frame, vo
 	CVector cur(0.0f, 0.0f, 0.0f);
 	CVector end(0.0f, 0.0f, 0.0f);
 	bool looped = false;
-	RpHAnimStdKeyFrame *xform = frame->hanimFrame;
+	RpHAnimStdInterpFrame *xform = frame->hanimFrame;
 	CAnimBlendNode **node;
 	AnimBlendFrameUpdateData *updateData = (AnimBlendFrameUpdateData*)arg;
 
diff --git a/src/animation/RpAnimBlend.cpp b/src/animation/RpAnimBlend.cpp
index 6739f56a..e93615b7 100644
--- a/src/animation/RpAnimBlend.cpp
+++ b/src/animation/RpAnimBlend.cpp
@@ -170,9 +170,9 @@ RpAnimBlendClumpInitSkinned(RpClump *clump)
 		frames[i].nodeID = HIERNODEID(hier, i);
 		frames[i].resetPos = boneTab[i];
 #ifdef LIBRW
-		frames[i].hanimFrame = (RpHAnimStdKeyFrame*)rpHANIMHIERARCHYGETINTERPFRAME(hier, i);
+		frames[i].hanimFrame = (RpHAnimStdInterpFrame*)rpHANIMHIERARCHYGETINTERPFRAME(hier, i);
 #else
-		frames[i].hanimFrame = (RpHAnimStdKeyFrame*)rtANIMGETINTERPFRAME(hier->currentAnim, i);
+		frames[i].hanimFrame = (RpHAnimStdInterpFrame*)rtANIMGETINTERPFRAME(hier->currentAnim, i);
 #endif
 	}
 	clumpData->ForAllFrames(FrameInitCBskin, nil);
diff --git a/src/core/common.h b/src/core/common.h
index b3ba757d..d22c1715 100644
--- a/src/core/common.h
+++ b/src/core/common.h
@@ -41,6 +41,7 @@
 #define HIERNODEINFO(hier) ((hier)->pNodeInfo)
 #define HIERNODEID(hier, i) ((hier)->pNodeInfo[i].nodeID)
 #define HANIMFRAME(anim, i) ((RwUInt8*)(anim)->pFrames + (i)*(anim)->interpInfo->keyFrameSize)
+#define RpHAnimStdInterpFrame RpHAnimStdKeyFrame
 #endif
 
 #ifdef RWHALFPIXEL
diff --git a/src/entities/Entity.cpp b/src/entities/Entity.cpp
index 4c88c485..e9332e8a 100644
--- a/src/entities/Entity.cpp
+++ b/src/entities/Entity.cpp
@@ -648,7 +648,7 @@ CEntity::UpdateRpHAnim(void)
 	char buf[256];
 	if(this == (CEntity*)FindPlayerPed())
 	for(i = 0; i < hier->numNodes; i++){
-		RpHAnimStdKeyFrame *kf = (RpHAnimStdKeyFrame*)rpHANIMHIERARCHYGETINTERPFRAME(hier, i);
+		RpHAnimStdInterpFrame *kf = (RpHAnimStdInterpFrame*)rpHANIMHIERARCHYGETINTERPFRAME(hier, i);
 		sprintf(buf, "%6.3f %6.3f %6.3f %6.3f  %6.3f %6.3f %6.3f  %d %s",
 			kf->q.imag.x, kf->q.imag.y, kf->q.imag.z, kf->q.real,
 			kf->t.x, kf->t.y, kf->t.z,
diff --git a/src/fakerw/rphanim.h b/src/fakerw/rphanim.h
index 6ece8306..63059800 100644
--- a/src/fakerw/rphanim.h
+++ b/src/fakerw/rphanim.h
@@ -17,7 +17,15 @@ struct RpHAnimStdKeyFrame
 	RtQuat           q;
 	RwV3d            t;
 };
-
+// same story, this one only exists in later RW versions
+// but we need it for 64 bit builds because offset and size differs!
+struct RpHAnimStdInterpFrame
+{
+	RpHAnimStdKeyFrame *keyFrame1;
+	RpHAnimStdKeyFrame *keyFrame2;
+	RtQuat           q;
+	RwV3d            t;
+};
 
 enum RpHAnimHierarchyFlag
 {
@@ -56,7 +64,7 @@ RwBool RpHAnimHierarchyUpdateMatrices(RpHAnimHierarchy *hierarchy);
 #define rpHANIMHIERARCHYGETINTERPFRAME( hierarchy, nodeIndex )    \
         ( (void *)( ( (RwUInt8 *)&(hierarchy->interpolator[1]) +                \
                       ((nodeIndex) *                               \
-                       hierarchy->interpolator->currentAnimKeyFrameSize) ) ) )
+                       hierarchy->interpolator->currentInterpKeyFrameSize) ) ) )
 
 
 RpHAnimAnimation *RpHAnimAnimationCreate(RwInt32 typeID, RwInt32 numFrames, RwInt32 flags, RwReal duration);