diff --git a/tests/testFFT.c b/tests/testFFT.c
index ee916443ba2686bd0d49af15c956101cb301d6e1..c4aeb2885c788bd769bda49bdd15ab121dd8e9d4 100644
--- a/tests/testFFT.c
+++ b/tests/testFFT.c
@@ -23,10 +23,7 @@
 
 #ifndef HAVE_FFTW
 
-int main() {
-
-  return 0;
-}
+int main() { return 0; }
 
 #else
 
diff --git a/tests/testKernelGrav.c b/tests/testKernelGrav.c
index 18140da79e74369b450429a49f3037e17cebb890..2733a4a4d041149499d354ef217ae85b1cd35b7f 100644
--- a/tests/testKernelGrav.c
+++ b/tests/testKernelGrav.c
@@ -77,7 +77,7 @@ int main() {
     if (fabsf(gadget_w - swift_w) > 2e-7) {
 
       printf("%2d: r= %f h= %f u= %f Wg(r,h)= %f Ws(r,h)= %f\n", k, r, h, u,
-	     gadget_w, swift_w);
+             gadget_w, swift_w);
 
       printf("Invalid value ! Gadget= %e, SWIFT= %e\n", gadget_w, swift_w);
       return 1;
@@ -102,8 +102,8 @@ int main() {
 
     if (fabsf(gadget_w - swift_w) > 2e-7) {
 
-      printf("%2d: r= %f r_lr= %f u= %f Ws(r)= %f Wg(r)= %f\n", k, r, a_smooth, u,
-	     swift_w, gadget_w);
+      printf("%2d: r= %f r_lr= %f u= %f Ws(r)= %f Wg(r)= %f\n", k, r, a_smooth,
+             u, swift_w, gadget_w);
 
       printf("Invalid value ! Gadget= %e, SWIFT= %e\n", gadget_w, swift_w);
       return 1;
diff --git a/tests/testMaths.c b/tests/testMaths.c
index fbf8da8419cda100c6b25e2f75d099a10f7430b3..3d8f9a8f9db0cf01276eff89aa44157008cbddc6 100644
--- a/tests/testMaths.c
+++ b/tests/testMaths.c
@@ -59,9 +59,9 @@ int main() {
       error = 1;
     }
 
-    if(error) {
+    if (error) {
       printf("%2d: x= %f exp(x)= %e approx_exp(x)=%e abs=%e rel=%e\n", i, x,
-	     exp_correct, exp_approx, abs, rel);
+             exp_correct, exp_approx, abs, rel);
       return 1;
     }
   }