diff --git a/acceptance/selftest/output.txt b/acceptance/selftest/output.txt
index 87901ed84..d1830e01f 100644
--- a/acceptance/selftest/output.txt
+++ b/acceptance/selftest/output.txt
@@ -17,13 +17,13 @@ Exit code: 5
 Exit code: 7
 
 === Capturing pwd
->>> pwd
+>>> python3 -c import os; print(os.getcwd())
 $TMPDIR
 
 === Capturing subdir
 >>> mkdir -p subdir/a/b/c
 
->>> withdir subdir/a/b/c pwd
+>>> withdir subdir/a/b/c python3 -c import os; print(os.getcwd())
 $TMPDIR/subdir/a/b/c
 
 === Custom output files - everything starting with out is captured and compared
diff --git a/acceptance/selftest/script b/acceptance/selftest/script
index 43d5c1146..89201d925 100644
--- a/acceptance/selftest/script
+++ b/acceptance/selftest/script
@@ -11,11 +11,11 @@ printf "\n=== Capturing exit code (alt)"
 errcode trace python3 -c 'raise SystemExit(7)'
 
 printf "\n=== Capturing pwd"
-trace pwd
+trace python3 -c 'import os; print(os.getcwd())'
 
 printf "\n=== Capturing subdir"
 trace mkdir -p subdir/a/b/c
-trace withdir subdir/a/b/c pwd | sed 's/\\/\//g'
+trace withdir subdir/a/b/c python3 -c 'import os; print(os.getcwd())' | sed 's/\\/\//g'
 
 printf "\n=== Custom output files - everything starting with out is captured and compared"
 trace echo HELLO > out.hello.txt