diff --git a/src/test-gradient-trivial.cc b/src/test-gradient-trivial.cc
index b14efe04c1c5f491758e7ef0da97eb8d0d5bc7e5..3ad7394f5c18e872861e90db817aa41cfe12dcde 100644
--- a/src/test-gradient-trivial.cc
+++ b/src/test-gradient-trivial.cc
@@ -12,7 +12,6 @@
 
 #include <dune/tectonic/samplefunctional.hh>
 
-#include "test-gradient-method-nicefunction.hh"
 #include "test-gradient-method-helper.hh"
 
 int main() {