diff --git a/tests/demo/draw/binpersist_1 b/tests/demo/draw/binpersist_1
index 895e070b38..4faabfcc3b 100644
--- a/tests/demo/draw/binpersist_1
+++ b/tests/demo/draw/binpersist_1
@@ -2,7 +2,7 @@
 
 pload TOPTEST
 
-set file binpersist.bin
+set file $imagedir/${casename}.bin
 
 box b 10 20 30 100 200 300
 
diff --git a/tests/demo/draw/binpersist_2 b/tests/demo/draw/binpersist_2
index 4d7958887c..0fe86e53ac 100644
--- a/tests/demo/draw/binpersist_2
+++ b/tests/demo/draw/binpersist_2
@@ -2,7 +2,7 @@
 
 pload TOPTEST
 
-set file binpersist.bin
+set file $imagedir/${casename}.bin
 
 restore [locate_data_file bug23849_segment_2.brep] b
 
diff --git a/tests/demo/draw/binpersist_3 b/tests/demo/draw/binpersist_3
index d8a546cb17..b047cec52d 100644
--- a/tests/demo/draw/binpersist_3
+++ b/tests/demo/draw/binpersist_3
@@ -2,7 +2,7 @@
 
 pload TOPTEST
 
-set file binpersist.bin
+set file $imagedir/${casename}.bin
 
 restore [locate_data_file OCC615.brep] b