diff --git a/tests/core_tests/chaingen_main.cpp b/tests/core_tests/chaingen_main.cpp
index 90fe3ff4..102b3116 100644
--- a/tests/core_tests/chaingen_main.cpp
+++ b/tests/core_tests/chaingen_main.cpp
@@ -251,7 +251,7 @@ bool gen_and_play_intermitted_by_blockchain_saveload(const char* const genclass_
 
 
 #define GENERATE_AND_PLAY(genclass)                                                                        \
-  if((!postponed_tests.count(#genclass) && run_single_test.empty()) || (!run_single_test.empty() && std::string::npos != std::string(#genclass).find(run_single_test)) \
+  if((!postponed_tests.count(#genclass) && run_single_test.empty()) || (!run_single_test.empty() && std::string::npos != std::string(#genclass).find(run_single_test))) \
   {                                                                                                        \
     TIME_MEASURE_START_MS(t);                                                                              \
     ++tests_count;                                                                                         \