diff --git a/include/cglm-vec.h b/include/cglm-vec.h
index 92ab5fb..4d5490d 100644
--- a/include/cglm-vec.h
+++ b/include/cglm-vec.h
@@ -428,9 +428,11 @@ glm_vec_rotate(vec3 v, float angle, vec3 axis) {
 CGLM_INLINE
 void
 glm_vec_rotate_m4(mat4 m, vec3 v, vec3 dest) {
-  dest[0] = m[0][0] * v[0] + m[1][0] * v[1] + m[2][0] * v[2];
-  dest[1] = m[0][1] * v[0] + m[1][1] * v[1] + m[2][1] * v[2];
-  dest[2] = m[0][2] * v[0] + m[1][2] * v[1] + m[2][2] * v[2];
+  vec3 res;
+  res[0] = m[0][0] * v[0] + m[1][0] * v[1] + m[2][0] * v[2];
+  res[1] = m[0][1] * v[0] + m[1][1] * v[1] + m[2][1] * v[2];
+  res[2] = m[0][2] * v[0] + m[1][2] * v[1] + m[2][2] * v[2];
+  glm_vec_dup(res, dest);
 }
 
 #endif /* cglm_vec_h */