diff --git a/ports/stm8/cosmic.mak b/ports/stm8/cosmic.mak
index 8d2a649..7b07385 100644
--- a/ports/stm8/cosmic.mak
+++ b/ports/stm8/cosmic.mak
@@ -73,7 +73,7 @@ endif
 #################
 
 # All tests
-all: $(BUILD_DIR) $(TEST_S19S) Makefile
+all: $(BUILD_DIR) $(TEST_S19S) cosmic.mak
 
 # Make build/output directory
 $(BUILD_DIR):
diff --git a/ports/stm8/iar.mak b/ports/stm8/iar.mak
index 3d7baf8..2c8958c 100644
--- a/ports/stm8/iar.mak
+++ b/ports/stm8/iar.mak
@@ -90,7 +90,7 @@ endif
 #################
 
 # All tests
-all: $(BUILD_DIR) $(TEST_S19S) Makefile
+all: $(BUILD_DIR) $(TEST_S19S) iar.mak
 
 # Make build/output directory
 $(BUILD_DIR):