diff --git a/unit_tests/test_trigger_decoder.cpp b/unit_tests/test_trigger_decoder.cpp
index edad27f129..22109f3671 100644
--- a/unit_tests/test_trigger_decoder.cpp
+++ b/unit_tests/test_trigger_decoder.cpp
@@ -275,7 +275,7 @@ static void assertREquals(void *expected, void *actual) {
 
 extern bool_t debugSignalExecutor;
 
-static void testRpmCalculator(void) {
+void testRpmCalculator(void) {
 	printf("*************************************************** testRpmCalculator\r\n");
 
 	EngineTestHelper eth(FORD_INLINE_6_1995);
diff --git a/unit_tests/test_trigger_decoder.h b/unit_tests/test_trigger_decoder.h
index 7d0155ae72..569e78f594 100644
--- a/unit_tests/test_trigger_decoder.h
+++ b/unit_tests/test_trigger_decoder.h
@@ -9,5 +9,6 @@
 #define TEST_TRIGGER_DECODER_H_
 
 void testTriggerDecoder(void);
+void testRpmCalculator(void);
 
 #endif /* TEST_TRIGGER_DECODER_H_ */