diff --git a/arduino-mk/Arduino.mk b/arduino-mk/Arduino.mk
index e90998f..62ef75b 100644
--- a/arduino-mk/Arduino.mk
+++ b/arduino-mk/Arduino.mk
@@ -225,7 +225,7 @@ ifneq ($(wildcard $(ARDMK_DIR)/arduino-mk/Common.mk),)
     # git checkout
     include $(ARDMK_DIR)/arduino-mk/Common.mk
 else
-    ifneq ($(wildcard $(ARDMK_DIR)/Common.mk),) 
+    ifneq ($(wildcard $(ARDMK_DIR)/Common.mk),)
         # package install
         include $(ARDMK_DIR)/Common.mk
     endif
@@ -838,19 +838,19 @@ $(call show_separator)
 
 # library sources
 $(OBJDIR)/libs/%.o: $(ARDUINO_LIB_PATH)/%.c
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CC) -MMD -c $(CPPFLAGS) $(CFLAGS) $< -o $@
 
 $(OBJDIR)/libs/%.o: $(ARDUINO_LIB_PATH)/%.cpp
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CC) -MMD -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
 
 $(OBJDIR)/libs/%.o: $(USER_LIB_PATH)/%.cpp
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CC) -MMD -c $(CPPFLAGS) $(CFLAGS) $< -o $@
 
 $(OBJDIR)/libs/%.o: $(USER_LIB_PATH)/%.c
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CC) -MMD -c $(CPPFLAGS) $(CFLAGS) $< -o $@
 
 ifdef COMMON_DEPS
@@ -861,42 +861,42 @@ endif
 
 # normal local sources
 $(OBJDIR)/%.o: %.c $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CC) -MMD -c $(CPPFLAGS) $(CFLAGS) $< -o $@
 
 $(OBJDIR)/%.o: %.cc $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CXX) -MMD -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
 
 $(OBJDIR)/%.o: %.cpp $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CXX) -MMD -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
 
 $(OBJDIR)/%.o: %.S $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CC) -MMD -c $(CPPFLAGS) $(ASFLAGS) $< -o $@
 
 $(OBJDIR)/%.o: %.s $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CC) -c $(CPPFLAGS) $(ASFLAGS) $< -o $@
 
 # the pde -> o file
 $(OBJDIR)/%.o: %.pde $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CXX) -x c++ -include $(ARDUINO_HEADER) -MMD -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
 
 # the ino -> o file
 $(OBJDIR)/%.o: %.ino $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CXX) -x c++ -include Arduino.h -MMD -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
 
 # generated assembly
 $(OBJDIR)/%.s: %.pde $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CXX) -x c++ -include $(ARDUINO_HEADER) -MMD -S -fverbose-asm $(CPPFLAGS) $(CXXFLAGS) $< -o $@
 
 $(OBJDIR)/%.s: %.ino $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CXX) -x c++ -include Arduino.h -MMD -S -fverbose-asm $(CPPFLAGS) $(CXXFLAGS) $< -o $@
 
 #$(OBJDIR)/%.lst: $(OBJDIR)/%.s
@@ -904,16 +904,16 @@ $(OBJDIR)/%.s: %.ino $(COMMON_DEPS) | $(OBJDIR)
 
 # core files
 $(OBJDIR)/%.o: $(ARDUINO_CORE_PATH)/%.c $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CC) -MMD -c $(CPPFLAGS) $(CFLAGS) $< -o $@
 
 $(OBJDIR)/%.o: $(ARDUINO_CORE_PATH)/%.cpp $(COMMON_DEPS) | $(OBJDIR)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(CXX) -MMD -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
 
 # various object conversions
 $(OBJDIR)/%.hex: $(OBJDIR)/%.elf $(COMMON_DEPS)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(OBJCOPY) -O ihex -R .eeprom $< $@
 	@$(ECHO)
 	$(call avr_size,$<,$@)
@@ -925,16 +925,16 @@ else
 endif
 
 $(OBJDIR)/%.eep: $(OBJDIR)/%.elf $(COMMON_DEPS)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
 		--change-section-lma .eeprom=0 -O ihex $< $@
 
 $(OBJDIR)/%.lss: $(OBJDIR)/%.elf $(COMMON_DEPS)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(OBJDUMP) -h --source --demangle --wide $< > $@
 
 $(OBJDIR)/%.sym: $(OBJDIR)/%.elf $(COMMON_DEPS)
-	$(MKDIR) $(dir $@)
+	@$(MKDIR) $(dir $@)
 	$(NM) --size-sort --demangle --reverse-sort --line-numbers $< > $@
 
 ########################################################################