diff --git a/src/gui/math3d/qquaternion.cpp b/src/gui/math3d/qquaternion.cpp
index f2e79cb834..5d73e54a26 100644
--- a/src/gui/math3d/qquaternion.cpp
+++ b/src/gui/math3d/qquaternion.cpp
@@ -457,7 +457,7 @@ QQuaternion QQuaternion::fromAxisAndAngle
     \since 5.5
     \overload
 
-    Calculates \a roll, \a pitch, and \a yaw Euler angles (in degrees)
+    Calculates roll, pitch, and yaw Euler angles (in degrees)
     that corresponds to this quaternion.
 
     \sa fromEulerAngles()
@@ -468,9 +468,9 @@ QQuaternion QQuaternion::fromAxisAndAngle
     \since 5.5
     \overload
 
-    Creates a quaternion that corresponds to a rotation of
-    \a eulerAngles.z() degrees around the z axis, \a eulerAngles.x() degrees around the x axis,
-    and \a eulerAngles.y() degrees around the y axis (in that order).
+    Creates a quaternion that corresponds to a rotation of \a eulerAngles:
+    eulerAngles.z() degrees around the z axis, eulerAngles.x() degrees around the x axis,
+    and eulerAngles.y() degrees around the y axis (in that order).
 
     \sa toEulerAngles()
 */
diff --git a/src/gui/math3d/qvector3d.cpp b/src/gui/math3d/qvector3d.cpp
index a93d994a70..ced4ac9d73 100644
--- a/src/gui/math3d/qvector3d.cpp
+++ b/src/gui/math3d/qvector3d.cpp
@@ -420,7 +420,7 @@ QVector3D QVector3D::project(const QMatrix4x4 &modelView, const QMatrix4x4 &proj
     component of the vector components takes place. To prevent dividing by 0 if
     w equals to 0, it is set to 1.
 
-    \note y coordinates in \a point should use OpenGL orientation. OpenGL
+    \note y coordinates in \a viewport should use OpenGL orientation. OpenGL
     expects the bottom to be 0 whereas for Qt top is 0.
 
     \sa project()
diff --git a/src/gui/opengl/qopenglshaderprogram.cpp b/src/gui/opengl/qopenglshaderprogram.cpp
index 8a7a1285a8..5de79c9e1e 100644
--- a/src/gui/opengl/qopenglshaderprogram.cpp
+++ b/src/gui/opengl/qopenglshaderprogram.cpp
@@ -2760,7 +2760,7 @@ void QOpenGLShaderProgram::setUniformValueArray
     should be used when setting an array of sampler values.
 
     \note This function is not aware of unsigned int support in modern OpenGL
-    versions and therefore treats \a value as a GLint and calls glUniform1iv.
+    versions and therefore treats \a values as a GLint and calls glUniform1iv.
 
     \sa setAttributeValue()
 */