diff --git a/tests/playTests.sh b/tests/playTests.sh
index 23931a4a..d36a9d91 100755
--- a/tests/playTests.sh
+++ b/tests/playTests.sh
@@ -216,6 +216,7 @@ $ZSTD -b --fast=1 -i0e1 tmp --compress-literals
 $ZSTD -b --fast=1 -i0e1 tmp --no-compress-literals
 
 println "test: --exclude-compressed flag"
+rm -rf precompressedFilterTestDir
 mkdir -p precompressedFilterTestDir
 ./datagen $size > precompressedFilterTestDir/input.5
 ./datagen $size > precompressedFilterTestDir/input.6