diff --git a/src/ac/ed/lurg/ModelConfig.java b/src/ac/ed/lurg/ModelConfig.java
index e289c2a0ee0b43aa2ee306913809f7d593d4c0b6..5696afb49e8cfa2a06c82106478d9be46b30176c 100755
--- a/src/ac/ed/lurg/ModelConfig.java
+++ b/src/ac/ed/lurg/ModelConfig.java
@@ -157,7 +157,8 @@ public class ModelConfig {
 	public static final String DEMAND_CURVES_FILE = getProperty("DEMAND_CURVES_FILE", DATA_DIR + File.separator + "com_curves.csv");  // either DEMAND_CURVES_FILE or DEMAND_CONSUMPTION_FILE is used, but not both
 	public static final String DEMAND_CONSUMPTION_FILE = getProperty("DEMAND_CONSUMPTION_FILE", DATA_DIR + File.separator + "hist_comsump.csv");
 	public static final PriceType PRICE_CALCULATION = PriceType.findByName(getProperty("PRICE_CALCULATION", "weightedImportsExports"));
-	public static final String SSP_FILE = DATA_DIR + File.separator + "ssp.csv";	
+	public static final String SSP_FILENAME = getProperty("SSP_FILENAME", "ssp.csv");
+	public static final String SSP_FILE = getProperty("SSP_FILE", DATA_DIR + File.separator + SSP_FILENAME);
 	public static final String BASELINE_CONSUMP_FILE = DATA_DIR + File.separator + "base_consump.csv";
 	public static final String CALORIE_PER_T_FILE = DATA_DIR + File.separator + "calories_per_t.csv";
 	public static final String COUNTRY_CODES_FILE = DATA_DIR + File.separator + "country_codes4.csv";