diff --git a/commons-math-legacy-exception/src/main/java/org/apache/commons/math4/legacy/exception/util/LocalizedFormats.java b/commons-math-legacy-exception/src/main/java/org/apache/commons/math4/legacy/exception/util/LocalizedFormats.java
index 6bf29f54f..5420bf0c5 100644
--- a/commons-math-legacy-exception/src/main/java/org/apache/commons/math4/legacy/exception/util/LocalizedFormats.java
+++ b/commons-math-legacy-exception/src/main/java/org/apache/commons/math4/legacy/exception/util/LocalizedFormats.java
@@ -91,7 +91,7 @@ public enum LocalizedFormats implements Localizable {
     DIMENSIONS_MISMATCH("dimensions mismatch"), /* keep */
     DISCRETE_CUMULATIVE_PROBABILITY_RETURNED_NAN("Discrete cumulative probability function returned NaN for argument {0}"),
     DISTRIBUTION_NOT_LOADED("distribution not loaded"),
-    DUPLICATED_ABSCISSA_DIVISION_BY_ZERO("duplicated abscissa {0} causes division by zero"),
+    DUPLICATED_ABSCISSA_DIVISION_BY_ZERO("duplicated abscissa {1} causes division by zero"),
     EDGE_CONNECTED_TO_ONE_FACET("edge joining points ({0}, {1}, {2}) and ({3}, {4}, {5}) is connected to one facet only"),
     ELITISM_RATE("elitism rate ({0})"),
     EMPTY_CLUSTER_IN_K_MEANS("empty cluster in k-means"),
@@ -281,8 +281,8 @@ public enum LocalizedFormats implements Localizable {
     NUMBER_OF_SUCCESS_LARGER_THAN_POPULATION_SIZE("number of successes ({0}) must be less than or equal to population size ({1})"),
     NUMERATOR_OVERFLOW_AFTER_MULTIPLY("overflow, numerator too large after multiply: {0}"),
     N_POINTS_GAUSS_LEGENDRE_INTEGRATOR_NOT_SUPPORTED("{0} points Legendre-Gauss integrator not supported, number of points must be in the {1}-{2} range"),
-    OBSERVED_COUNTS_ALL_ZERO("observed counts are all 0 in observed array {0}"),
-    OBSERVED_COUNTS_BOTTH_ZERO_FOR_ENTRY("observed counts are both zero for entry {0}"),
+    OBSERVED_COUNTS_ALL_ZERO("observed counts are all 0 in observed array {1}"),
+    OBSERVED_COUNTS_BOTTH_ZERO_FOR_ENTRY("observed counts are both zero for entry {1}"),
     BOBYQA_BOUND_DIFFERENCE_CONDITION("the difference between the upper and lower bound must be larger than twice the initial trust region radius ({0})"),
     OUT_OF_BOUNDS_QUANTILE_VALUE("out of bounds quantile value: {0}, must be in (0, 100]"),
     OUT_OF_BOUNDS_CONFIDENCE_LEVEL("out of bounds confidence level {0}, must be between {1} and {2}"),