diff --git a/apps/Makefile b/apps/Makefile
index 394a78fd..80196de4 100644
--- a/apps/Makefile
+++ b/apps/Makefile
@@ -58,11 +58,11 @@ clean:
 
 .PHONY: modules
 modules:
-	-@for r in $(app_modules) "" ; do \
-		if [ -n "$$r" ]; then \
+	@for r in $(app_modules) "" ; do \
+		if [ -n "$$r" -a -f "$$r"/Makefile ]; then \
 			echo  "" ; \
 			echo  "" ; \
-			COREPATH=../$(COREPATH) $(MAKE) -C $$r all; \
+			COREPATH=../$(COREPATH) $(MAKE) -C $$r all || exit 1; \
 		fi ; \
 	done 
 
diff --git a/core/plug-in/Makefile.app_module b/core/plug-in/Makefile.app_module
index ad8587d0..03c3ff9e 100644
--- a/core/plug-in/Makefile.app_module
+++ b/core/plug-in/Makefile.app_module
@@ -27,12 +27,12 @@ depends  = $(srcs:.cpp=.d)
 
 .PHONY: all
 all: $(extra_target)
-	-@$(MAKE) deps    && \
+	@$(MAKE) deps    && \
 	  $(MAKE) $(lib_full_name)
 
 .PHONY: module_package
 module_package: $(extra_target)
-	-@$(MAKE) deps    && \
+	@$(MAKE) deps    && \
 	  $(MAKE) $(lib_name)