diff --git a/libs/rs/scriptc/rs_types.rsh b/libs/rs/scriptc/rs_types.rsh
index a010096507b18..367af4642e23f 100644
--- a/libs/rs/scriptc/rs_types.rsh
+++ b/libs/rs/scriptc/rs_types.rsh
@@ -73,8 +73,6 @@ typedef struct {
     float m[4];
 } rs_matrix2x2;
 
-typedef float4 rs_quaternion;
-
 #define RS_PACKED __attribute__((packed, aligned(4)))
 
 #endif