diff --git a/doc/display.xml b/doc/display.xml
index df8da62f4..bc3091b64 100644
--- a/doc/display.xml
+++ b/doc/display.xml
@@ -252,7 +252,8 @@ node [shape=circle]
 4 -> 2[color=pink]
 4 -> 3[color=purple]
 }
-gap> FileString("k4.dot", DotDigraph(D));
+gap> filename := Filename(DirectoryTemporary(), "k4.dot");;
+gap> FileString(filename, DotDigraph(D));
 133
 gap> D := Digraph([[2, 3], [1, 3], [1]]);
 <immutable digraph with 3 vertices, 5 edges>
@@ -272,7 +273,8 @@ node [shape=circle]
 2 -> 3[color=pink]
 3 -> 1[color=yellow]
 }
-gap> FileString("digraph.dot", DotDigraph(D));
+gap> filename := Filename(DirectoryTemporary(), "digraph.dot");;
+gap> FileString(filename, DotDigraph(D));
 82]]></Example>
     </Description>
   </ManSection>
@@ -407,7 +409,8 @@ gap> poset := Digraph([[1, 4], [2], [2, 3, 4], [4]]);
 <immutable digraph with 4 vertices, 7 edges>
 gap> IsPartialOrderDigraph(poset);
 true
-gap> FileString("poset.dot", DotPartialOrderDigraph(poset));
+gap> filename := Filename(DirectoryTemporary(), "poset.dot");;
+gap> FileString(filename, DotPartialOrderDigraph(poset));
 70]]></Example>
     </Description>
   </ManSection>
@@ -450,7 +453,8 @@ gap> preset := Digraph([[1, 2, 4, 5], [1, 2, 4, 5], [3, 4], [4],
 <immutable digraph with 5 vertices, 15 edges>
 gap> IsPreorderDigraph(preset);
 true
-gap> FileString("preset.dot", DotPreorderDigraph(preset));
+gap> filename := Filename(DirectoryTemporary(), "preset.dot");;
+gap> FileString(filename, DotPreorderDigraph(preset));
 179]]></Example>
     </Description>
   </ManSection>
@@ -477,7 +481,8 @@ gap> FileString("preset.dot", DotPreorderDigraph(preset));
       <Example><![CDATA[
 gap> digraph := Digraph([[2, 3], [2], [1, 3]]);
 <immutable digraph with 3 vertices, 5 edges>
-gap> FileString("my_digraph.dot", DotHighlightedDigraph(digraph, 
+gap> filename := Filename(DirectoryTemporary(), "my_digraph.dot");;
+gap> FileString(filename, DotHighlightedDigraph(digraph,
 > [1, 2], "red", "black"));
 264]]></Example>
     </Description>
diff --git a/doc/io.xml b/doc/io.xml
index c1caf5156..67924c7df 100644
--- a/doc/io.xml
+++ b/doc/io.xml
@@ -113,7 +113,7 @@ false
     To see what file types are available, see <Ref Func="WriteDigraphs"/>.
 
     <Example><![CDATA[
-gap> filename := Concatenation(DIGRAPHS_Dir(), "/tst/out/man.d6.gz");;
+gap> filename := Filename(DirectoryTemporary(), "man.d6.gz");;
 gap> file := DigraphFile(filename, "w");;
 gap> for i in [1 .. 10] do
 >   WriteDigraphs(file, Digraph([[1, 3], [2], [1, 2]]));
@@ -225,7 +225,7 @@ gap> for x in iter do od;
     </List>
 
     <Example><![CDATA[
-gap> filename := Concatenation(DIGRAPHS_Dir(), "/tst/out/man.d6.gz");;
+gap> filename := Filename(DirectoryTemporary(), "man.d6.gz");;
 gap> file := DigraphFile(filename, "w");;
 gap> for i in [1 .. 10] do
 > WriteDigraphs(file, Digraph([[1, 3], [2], [1, 2]]));
@@ -563,7 +563,7 @@ gap> grs[3] := Digraph([
 > [3, 4, 5, 6, 7, 8, 9, 10], [1, 3, 5, 7, 8, 9], [1, 2, 5],
 > [1, 2, 4, 6, 7, 8]]);
 <immutable digraph with 10 vertices, 51 edges>
-gap> filename := Concatenation(DIGRAPHS_Dir(), "/tst/out/man.d6.gz");;
+gap> filename := Filename(DirectoryTemporary(), "man.d6.gz");;
 gap> WriteDigraphs(filename, grs, "w");
 IO_OK
 gap> ReadDigraphs(filename);
@@ -708,7 +708,7 @@ gap> DigraphFromPlainTextString(last);
     <Example><![CDATA[
 gap> gr := Digraph([[1, 2, 3], [1, 1], [2]]);
 <immutable multidigraph with 3 vertices, 6 edges>
-gap> filename := Concatenation(DIGRAPHS_Dir(), "/tst/out/plain.txt");;
+gap> filename := Filename(DirectoryTemporary(), "plain.txt");;
 gap> WritePlainTextDigraph(filename, gr, ",", -1);
 gap> ReadPlainTextDigraph(filename, ",", 1, ['/', '%']);
 <immutable multidigraph with 3 vertices, 6 edges>
@@ -783,8 +783,7 @@ gap> ReadPlainTextDigraph(filename, ",", 1, ['/', '%']);
     <Example><![CDATA[
 gap> gr := Digraph([[2], [1, 3, 4], [2, 4], [2, 3]]);
 <immutable digraph with 4 vertices, 8 edges>
-gap> filename := Concatenation(DIGRAPHS_Dir(),
->                              "/tst/out/dimacs.dimacs");;
+gap> filename := Filename(DirectoryTemporary(), "dimacs.dimacs");;
 gap> WriteDIMACSDigraph(filename, gr);;
 gap> ReadDIMACSDigraph(filename);
 <immutable digraph with 4 vertices, 8 edges>]]></Example>