diff --git a/doc/includes/references.h b/doc/includes/references.h
index 181959ca..7950ca98 100644
--- a/doc/includes/references.h
+++ b/doc/includes/references.h
@@ -2215,7 +2215,7 @@ typedef struct mjsFlex_ {          // flex specification
   int vertcollide;                 // mode for vertex collision
   int passive;                     // mode for passive collisions
   int activelayers;                // number of active element layers in 3D
-  int group;                       // group for visualizatioh
+  int group;                       // group for visualization
   double edgestiffness;            // edge stiffness
   double edgedamping;              // edge damping
   float rgba[4];                   // rgba when material is omitted
diff --git a/include/mujoco/mjspec.h b/include/mujoco/mjspec.h
index af487864..1aebbd67 100644
--- a/include/mujoco/mjspec.h
+++ b/include/mujoco/mjspec.h
@@ -445,7 +445,7 @@ typedef struct mjsFlex_ {          // flex specification
   int vertcollide;                 // mode for vertex collision
   int passive;                     // mode for passive collisions
   int activelayers;                // number of active element layers in 3D
-  int group;                       // group for visualizatioh
+  int group;                       // group for visualization
   double edgestiffness;            // edge stiffness
   double edgedamping;              // edge damping
   float rgba[4];                   // rgba when material is omitted
diff --git a/python/mujoco/introspect/structs.py b/python/mujoco/introspect/structs.py
index f0e4a848..ac7bbdda 100644
--- a/python/mujoco/introspect/structs.py
+++ b/python/mujoco/introspect/structs.py
@@ -8025,7 +8025,7 @@ STRUCTS: Mapping[str, StructDecl] = dict([
              StructFieldDecl(
                  name='group',
                  type=ValueType(name='int'),
-                 doc='group for visualizatioh',
+                 doc='group for visualization',
              ),
              StructFieldDecl(
                  name='edgestiffness',