diff --git a/core/plug-in/Makefile b/core/plug-in/Makefile
index 5d426e86..d70a50f1 100644
--- a/core/plug-in/Makefile
+++ b/core/plug-in/Makefile
@@ -8,6 +8,7 @@ modules = $(filter-out $(exclude_modules) \
 		$(wildcard *) )
 #modules = wav gsm ilbc bot echo announcement recorder voicemail dtmf_demo ivr
 
+.DEFAULT_GOAL := all
 .PHONY: all
 all: modules
 
diff --git a/core/plug-in/Makefile.app_module b/core/plug-in/Makefile.app_module
index 22c2d641..e6f7fc2e 100644
--- a/core/plug-in/Makefile.app_module
+++ b/core/plug-in/Makefile.app_module
@@ -14,6 +14,7 @@ hrds     = $(wildcard *.h)
 objs     = $(srcs:.cpp=.o) 
 depends  = $(srcs:.cpp=.d)
 
+.DEFAULT_GOAL := all
 .PHONY: all
 all: $(extra_target)
 	-@$(MAKE) deps    && \
diff --git a/core/plug-in/Makefile.audio_module b/core/plug-in/Makefile.audio_module
index ec1acdb4..1e99af25 100644
--- a/core/plug-in/Makefile.audio_module
+++ b/core/plug-in/Makefile.audio_module
@@ -14,6 +14,7 @@ hrds     = $(wildcard *.h)
 objs     = $(srcs:.c=.o) $(module_extra_objs)
 depends  = $(srcs:.c=.d)
 
+.DEFAULT_GOAL := all
 .PHONY: all
 all:
 	-@$(MAKE) deps    && \