diff --git a/include/cglm/vec4-ext.h b/include/cglm/vec4-ext.h
index b303106..965d3d1 100644
--- a/include/cglm/vec4-ext.h
+++ b/include/cglm/vec4-ext.h
@@ -27,7 +27,7 @@
    CGLM_INLINE void  glm_vec4_abs(vec4 v, vec4 dest);
    CGLM_INLINE void  glm_vec4_fract(vec4 v, vec4 dest);
    CGLM_INLINE void  glm_vec4_floor(vec4 v, vec4 dest);
-   CGLM_INLINE float glm_vec4_mods(vec4 v, float val);
+   CGLM_INLINE float glm_vec4_mods(vec4 v, float s, vec4 dest);
    CGLM_INLINE float glm_vec4_hadd(vec4 v);
    CGLM_INLINE void  glm_vec4_sqrt(vec4 v, vec4 dest);
  */