diff --git a/doc/texinfo/gmsh.texi b/doc/texinfo/gmsh.texi
index e165341d2d526ce034392a98956ee471066afc0d..d6e2268dbc95940461294a399419dd8dc96ecb16 100644
--- a/doc/texinfo/gmsh.texi
+++ b/doc/texinfo/gmsh.texi
@@ -1907,7 +1907,7 @@ mesh element size at that point. See @ref{Specifying mesh element
 sizes}, for more information about how this value is used in the meshing
 process.
 
-@item Physical Point ( @var{expression} | @var{char-expression} ) = @{ @var{expression-list} @};
+@item Physical Point ( @var{expression} | @var{char-expression} ) <+>= @{ @var{expression-list} @};
 Creates a physical point. The @var{expression} inside the parentheses is
 the physical point's identification number (if a @var{char-expression}
 is given instead, a unique identification number is automatically
@@ -2009,7 +2009,7 @@ number of the elementary lines that should be reparametrized as a single
 line. See @code{Compound Surface} for additional information on compound
 entities.
 
-@item Physical Line ( @var{expression} | @var{char-expression} ) = @{ @var{expression-list} @};
+@item Physical Line ( @var{expression} | @var{char-expression} ) <+>= @{ @var{expression-list} @};
 Creates a physical line. The @var{expression} inside the parentheses is
 the physical line's identification number (if a @var{char-expression} is
 given instead, a unique identification number is automatically
@@ -2081,7 +2081,7 @@ surface's identification number; the mandatory @var{expression-list} on
 the right hand side contains the identification number of the elementary
 surfaces that should be reparametrized as a single surface.
 
-@item Physical Surface ( @var{expression} | @var{char-expression} ) = @{ @var{expression-list} @};
+@item Physical Surface ( @var{expression} | @var{char-expression} ) <+>= @{ @var{expression-list} @};
 Creates a physical surface. The @var{expression} inside the parentheses
 is the physical surface's identification number (if a
 @var{char-expression} is given instead, a unique identification number
@@ -2130,7 +2130,7 @@ number of the elementary volumes that should be reparametrized as a
 single volume. See @code{Compound Surface} for additional information on
 compound entities.
 
-@item Physical Volume ( @var{expression} | @var{char-expression} ) = @{ @var{expression-list} @};
+@item Physical Volume ( @var{expression} | @var{char-expression} ) <+>= @{ @var{expression-list} @};
 Creates a physical volume. The @var{expression} inside the parentheses
 is the physical volume's identification number (if a
 @var{char-expression} is given instead, a unique identification number