diff --git a/src/bin/fuzzer.c b/src/bin/fuzzer.c
index 9c2eb50..6352aa0 100644
--- a/src/bin/fuzzer.c
+++ b/src/bin/fuzzer.c
@@ -125,7 +125,17 @@ int LLVMFuzzerInitialize(int *argc, char ***argv)
                }
        }

-       if (!dict_dir) dict_dir = DICTDIR;
+       if (!dict_dir) {
+               dict_dir = malloc(strlen((*argv)[0]) + 1);
+               memcpy(dict_dir, (*argv)[0], strlen((*argv)[0]) + 1);
+               snprintf(strrchr(dict_dir, '/'), 6, "/dict");
+       }
+       if (!lib_dir) {
+                lib_dir = malloc(strlen((*argv)[0]) + 1);
+                memcpy(lib_dir, (*argv)[0], strlen((*argv)[0]) + 1);
+                snprintf(strrchr(lib_dir, '/'), 5, "/lib");
+                setenv("FR_LIBRARY_PATH", lib_dir, 1);
+       }

        /*
         *      When jobs=N is specified the fuzzer spawns worker processes via