diff --git a/app/KaGen.cpp b/app/KaGen.cpp
index bf13c9d4..ad36db46 100644
--- a/app/KaGen.cpp
+++ b/app/KaGen.cpp
@@ -178,7 +178,7 @@ This is mostly useful for experimental graph generators or when using KaGen to l
         "--edgeweights-range-begin", config.edge_weights.weight_range_begin,
         "(Included) begin of weight range used for edge weights, i.e., minimum edge weight.");
     app.add_option(
-        "--edgeweights-range-end", config.edge_weights.weight_range_begin,
+        "--edgeweights-range-end", config.edge_weights.weight_range_end,
         "(Excluded) end of weight range to be used for edge weights.");
 
     // Vertex weight generator parameters
@@ -190,7 +190,7 @@ This is mostly useful for experimental graph generators or when using KaGen to l
         "--vertexweights-range-begin", config.vertex_weights.weight_range_begin,
         "(Included) begin of weight range used for vertex weights, i.e., minimum vertex weight.");
     app.add_option(
-        "--vertexweights-range-end", config.vertex_weights.weight_range_begin,
+        "--vertexweights-range-end", config.vertex_weights.weight_range_end,
         "(Excluded) end of weight range to be used for vertex weights.");
 
     { // Options string
diff --git a/kagen/edgeweight_generators/uniform_random_generator.cpp b/kagen/edgeweight_generators/uniform_random_generator.cpp
index 1b99795d..b10d7c9a 100644
--- a/kagen/edgeweight_generators/uniform_random_generator.cpp
+++ b/kagen/edgeweight_generators/uniform_random_generator.cpp
@@ -81,7 +81,7 @@ UniformRandomEdgeWeightGenerator::UniformRandomEdgeWeightGenerator(
       comm_(comm),
       vertex_range_(vertex_range) {
     if (config_.weight_range_begin >= config_.weight_range_end) {
-        throw std::runtime_error("Weight causes undefined behavior, need weight_range_begin > weight_range_end.");
+        throw std::runtime_error("Weight causes undefined behavior, need weight_range_begin < weight_range_end.");
     }
 }
 
diff --git a/kagen/vertexweight_generators/uniform_random_generator.cpp b/kagen/vertexweight_generators/uniform_random_generator.cpp
index ce4fdb91..f1c4a1fe 100644
--- a/kagen/vertexweight_generators/uniform_random_generator.cpp
+++ b/kagen/vertexweight_generators/uniform_random_generator.cpp
@@ -8,7 +8,7 @@ UniformRandomVertexWeightGenerator::UniformRandomVertexWeightGenerator(VertexWei
     : config_(config),
       comm_{comm} {
     if (config_.weight_range_begin >= config_.weight_range_end) {
-        throw std::runtime_error("Weight causes undefined behavior, need weight_range_begin > weight_range_end.");
+        throw std::runtime_error("Weight causes undefined behavior, need weight_range_begin < weight_range_end.");
     }
 }