diff --git a/benchmark.py b/benchmark.py
index 23dab08df..ddb4addc5 100644
--- a/benchmark.py
+++ b/benchmark.py
@@ -175,6 +175,12 @@ def nextJob(config):
 				if not instanceSetID in configuration["instanceSets"]:
 					continue
 
+				fixedHorizon = ("fixedHorizon" in configuration and configuration["fixedHorizon"] == True)
+				planLength = (instance["planLength"] if "planLength" in instance else None)
+
+				if fixedHorizon and planLength == None:
+					continue
+
 				if not os.path.exists(outputFile) or not os.path.exists(errorFile) or not os.path.exists(environmentFile):
 					return {"configuration": configuration, "instance": instance}
 
@@ -219,6 +225,9 @@ def runJob(configuration, instance, config):
 
 	command += configuration["options"]
 
+	if "fixedHorizon" in configuration and configuration["fixedHorizon"] == True:
+		command += ["-F " + str(instance["planLength"]), "-T " + str(instance["planLength"])]
+
 	# TODO: verify planner Git hash
 	plannerDir = config["executables"]["planner"]["directory"]
 	stdout, stderr, exitCode = executeCommand(command, cwd = plannerDir)