diff --git a/recursive-fuzz-cmin.sh b/recursive-fuzz-cmin.sh
index 644db25b..976accc1 100755
--- a/recursive-fuzz-cmin.sh
+++ b/recursive-fuzz-cmin.sh
@@ -1,19 +1,22 @@
 #!/bin/bash
 i=0
-find fuzz/corpus -iname "fuzz_$1_iter_*" -exec rm -r {} +
-cp -r "fuzz/corpus/fuzz_$1" "fuzz/corpus/fuzz_$1_iter_0"
+rm -rf "fuzz/corpus/fuzz_$1_iter_0" || true
+mkdir "fuzz/corpus/fuzz_$1_iter_0"
+find "fuzz/corpus/fuzz_$1" -exec mv '{}' "fuzz/corpus/fuzz_$1_iter_0" ';'
 while true; do
   j=$((i + 1))
+  rm -rf "fuzz/corpus/fuzz_$1_iter_${i}.bak" || true
   cp -r "fuzz/corpus/fuzz_$1_iter_${i}" "fuzz/corpus/fuzz_$1_iter_${i}.bak"
+  rm -rf "fuzz/corpus/fuzz_$1_iter_${j}" || true
   mkdir "fuzz/corpus/fuzz_$1_iter_${j}"
   cargo fuzz cmin --all-features "fuzz_$1" "fuzz/corpus/fuzz_$1_iter_${i}" -- \
     -dict=fuzz/fuzz.dict -max_len="$2" -rss_limit_mb=8192 -timeout=30 "fuzz/corpus/fuzz_$1_iter_${j}"
   if diff "fuzz/corpus/fuzz_$1_iter_${i}.bak" "fuzz/corpus/fuzz_$1_iter_${j}"; then
     # Last iteration made no difference, so we're done
-    rm -r "fuzz/corpus/fuzz_$1"
+    rm -rf "fuzz/corpus/fuzz_$1"
     mkdir "fuzz/corpus/fuzz_$1"
     find "fuzz/corpus/fuzz_$1_iter_${j}" -type f -exec mv '{}' "fuzz/corpus/fuzz_$1" ';'
-    find fuzz/corpus -iname "fuzz_$1_iter_*" -exec rm -r {} +
+    rm -rf "fuzz/corpus/fuzz_$1_iter_${i}.bak"
     exit 0
   fi
   i=$j