diff --git a/test/fmf/integration-tests/test.sh b/test/fmf/integration-tests/test.sh
index 9ba1990b21..d1e43b1d7d 100755
--- a/test/fmf/integration-tests/test.sh
+++ b/test/fmf/integration-tests/test.sh
@@ -112,13 +112,6 @@ if [[ ! -e /dev/kvm ]]; then
     export TEST_NO_QEMU=1
 fi
 
-NPROC=$(nproc)
-if [[ $NPROC -ge 10 ]]; then
-    NPROC=$((NPROC / 2))
-else
-    NPROC=$((NPROC - 1))
-fi
-
 # Create missing mountpoint for mkosi sandbox.
 mkdir -p /etc/pacman.d/gnupg
 
@@ -134,7 +127,7 @@ mkosi -f sandbox \
     --suite integration-tests \
     --print-errorlogs \
     --no-stdsplit \
-    --num-processes "$NPROC" && EC=0 || EC=$?
+    --num-processes "$(($(nproc) - 1))" && EC=0 || EC=$?
 
 find build/meson-logs -type f -exec mv {} "$TMT_TEST_DATA" \;
 find build/test/journal -type f -exec mv {} "$TMT_TEST_DATA" \;