diff --git a/examples/10_nuclear_recovery/example.c b/examples/10_nuclear_recovery/example.c
index 670355d..b5f0767 100644
--- a/examples/10_nuclear_recovery/example.c
+++ b/examples/10_nuclear_recovery/example.c
@@ -24,7 +24,7 @@ double yearly_probability_nuclear_collapse_2023(uint64_t* seed){
 double yearly_probability_nuclear_collapse_after_recovery(double year, double rebuilding_period_length_years, uint64_t* seed){
 	// assumption: nuclear 
 	double successes = 1.0;
-	double failures = (year - rebuilding_period_length_years - 1960);
+	double failures = (year - rebuilding_period_length_years - 1960 - 1);
 	return sample_laplace(successes, failures, seed);
 }
 double yearly_probability_nuclear_collapse_after_recovery_example(uint64_t* seed){