diff --git a/src/compiler/nir/nir_lower_io_to_vector.c b/src/compiler/nir/nir_lower_io_to_vector.c
index 3c7eb5a94e7..ef54b3c5268 100644
--- a/src/compiler/nir/nir_lower_io_to_vector.c
+++ b/src/compiler/nir/nir_lower_io_to_vector.c
@@ -253,7 +253,7 @@ create_new_io_vars(nir_shader *shader, nir_variable_mode mode,
             }
 
             const unsigned num_components =
-               glsl_get_components(glsl_without_array(var->type));
+               glsl_get_vector_elements(glsl_without_array(var->type));
             if (!num_components) {
                assert(frac == 0);
                frac++;