diff --git a/fuzz/meson.build b/fuzz/meson.build
index e4948b7..798ebdd 100644
--- a/fuzz/meson.build
+++ b/fuzz/meson.build
@@ -3,8 +3,17 @@ fuzzer_cargs = [
   '-DTEST_RUN',
 ]
 
-foreach test_name : ['fuzzer', 'load_fuzzer', 'load_dafsa_fuzzer']
-  source_file = 'libpsl_@0@.c'.format(test_name)
+foreach test_case : ['fuzzer', 'load_fuzzer', 'load_dafsa_fuzzer']
+  if enable_runtime == 'libidn2'
+    test_name = 'libpsl_idn2_' + test_case
+  elif enable_runtime == 'libicu'
+    test_name = 'libpsl_icu_' + test_case
+  elif enable_runtime == 'libidn'
+    test_name = 'libpsl_idn_' + test_case
+  else
+    test_name = 'libpsl_' + test_case
+  endif
+  source_file = 'libpsl_@0@.c'.format(test_case)
   exe = executable(test_name, source_file, 'main.c',
     link_with : libpsl,
     c_args : fuzzer_cargs,