diff --git a/DynareBison.yy b/DynareBison.yy
index dac5db110310885f792c4732c02289bfa8b43d45..28709769f324613bacc0126f86d5fd46d422d136 100644
--- a/DynareBison.yy
+++ b/DynareBison.yy
@@ -3221,16 +3221,16 @@ o_psd_fig_name : FIG_NAME EQUAL filename { driver.option_str("plot_shock_decomp.
 o_psd_type : TYPE EQUAL QOQ
              { driver.option_str("plot_shock_decomp.type", "qoq"); }
            | TYPE EQUAL YOY
-             { driver.option_str("plot_shock_decomp.type", "qoq"); }
+             { driver.option_str("plot_shock_decomp.type", "yoy"); }
            | TYPE EQUAL AOA
-             { driver.option_str("plot_shock_decomp.type", "qoq"); }
+             { driver.option_str("plot_shock_decomp.type", "aoa"); }
            ;
 o_icd_type : TYPE EQUAL QOQ
              { driver.option_str("initial_condition_decomp.type", "qoq"); }
            | TYPE EQUAL YOY
-             { driver.option_str("initial_condition_decomp.type", "qoq"); }
+             { driver.option_str("initial_condition_decomp.type", "yoy"); }
            | TYPE EQUAL AOA
-             { driver.option_str("initial_condition_decomp.type", "qoq"); }
+             { driver.option_str("initial_condition_decomp.type", "aoa"); }
            ;
 o_icd_plot_init_date : PLOT_INIT_DATE EQUAL date_expr { driver.option_date("initial_condition_decomp.plot_init_date", $3); } ;
 o_icd_plot_end_date : PLOT_END_DATE EQUAL date_expr { driver.option_date("initial_condition_decomp.plot_end_date", $3); } ;