diff --git a/tests/test27cells.sh.in b/tests/test27cells.sh.in
index 966c8618cfdd9f5f5042f236b76d14bed8e735a0..4be2979e58fbe2f14a0cf3c7becdaae4be36a2f4 100755
--- a/tests/test27cells.sh.in
+++ b/tests/test27cells.sh.in
@@ -5,7 +5,7 @@ do
     echo ""
     rm brute_force_27_standard.dat swift_dopair_27_standard.dat
     ./test27cells -n 6 -r 1 -d 0 -f standard -v $v
-    python @srcdir@/difffloat.py brute_force_27_standard.dat swift_dopair_27_standard.dat @srcdir@/tolerance_27.dat 6
+    python @srcdir@/difffloat.py brute_force_27_standard.dat swift_dopair_27_standard.dat @srcdir@/tolerance_27_normal.dat 6
 done
 
 exit $?
diff --git a/tests/test27cellsPerturbed.sh.in b/tests/test27cellsPerturbed.sh.in
index cb64fb605f41f54729456283a2614435c8456fd3..8adc4fc07d7f3ca3cb4c0bedf9e01c4885dd39b1 100755
--- a/tests/test27cellsPerturbed.sh.in
+++ b/tests/test27cellsPerturbed.sh.in
@@ -5,7 +5,7 @@ do
     echo ""
     rm brute_force_27_perturbed.dat swift_dopair_27_perturbed.dat
     ./test27cells -n 6 -r 1 -d 0.1 -f perturbed -v $v
-    python @srcdir@/difffloat.py brute_force_27_perturbed.dat swift_dopair_27_perturbed.dat @srcdir@/tolerance_27.dat 6
+    python @srcdir@/difffloat.py brute_force_27_perturbed.dat swift_dopair_27_perturbed.dat @srcdir@/tolerance_27_perturbed.dat 6
 done
 
 exit $?
diff --git a/tests/tolerance_27.dat b/tests/tolerance_27_normal.dat
similarity index 67%
rename from tests/tolerance_27.dat
rename to tests/tolerance_27_normal.dat
index 6691c7791ed71152e3684c695c885d7a13fc9cad..135b991403778926e47f1e75459de97a7d5f1d2a 100644
--- a/tests/tolerance_27.dat
+++ b/tests/tolerance_27_normal.dat
@@ -1,3 +1,3 @@
 #   ID      pos_x      pos_y      pos_z        v_x        v_y        v_z           rho        rho_dh        wcount     wcount_dh         div_v       curl_vx       curl_vy       curl_vz
-    0	    1e-6       1e-6	  1e-6 	       1e-6 	  1e-6	     1e-6	   1e-5	      1e-5	    4e-5       3e-2		 1e-5	     1e-5	   1e-5		 1e-5
-    0	    1e-6       1e-6	  1e-6 	       1e-6 	  1e-6	     1e-6	   1e-5	      1.2e-5	    1e-5       1e-2		 1e-4	     1.5e-4	   1.5e-4	 1.5e-4
+    0	    1e-6       1e-6	  1e-6 	       1e-6 	  1e-6	     1e-6	   1e-6	      2e-6	    2e-5       2e-3		 2e-6	     2e-6	   2e-6		 2e-6
+    0	    1e-6       1e-6	  1e-6 	       1e-6 	  1e-6	     1e-6	   1e-6	      1e-6	    1e-5       1e-4		 2e-5	     1e-5	   1e-5	 	 1e-5
diff --git a/tests/tolerance_27_perturbed.dat b/tests/tolerance_27_perturbed.dat
new file mode 100644
index 0000000000000000000000000000000000000000..13b9ced676ff8b6b18cd2c151b4044a329586786
--- /dev/null
+++ b/tests/tolerance_27_perturbed.dat
@@ -0,0 +1,3 @@
+#   ID      pos_x      pos_y      pos_z        v_x        v_y        v_z           rho        rho_dh        wcount     wcount_dh         div_v       curl_vx       curl_vy       curl_vz
+    0	    1e-6       1e-6	  1e-6 	       1e-6 	  1e-6	     1e-6	   1e-6	      2e-6	    2e-5       2e-3		 2e-6	     2e-6	   2e-6		 2e-6
+    0	    1e-6       1e-6	  1e-6 	       1e-6 	  1e-6	     1e-6	   1e-6	      1e-6	    1e-5       1e-4		 2e-5	     1.5e-4	   1.5e-4	 1.5e-4