1 files changed, 1 insertions, 1 deletions
diff --git a/Arduino.mk b/Arduino.mk
index 42dfef0..e66dfee 100644
--- a/Arduino.mk
+++ b/Arduino.mk
@@ -648,7 +648,7 @@ LOCAL_OBJ_FILES = $(LOCAL_C_SRCS:.c=.o)   $(LOCAL_CPP_SRCS:.cpp=.o) \
 LOCAL_OBJS      = $(patsubst %,$(OBJDIR)/%,$(LOCAL_OBJ_FILES))
 
 ifeq ($(words $(LOCAL_SRCS)), 0)
-    $(error Atleast one source file (*.ino, *.pde, *.cpp, *c, *cc, *.S) is needed)
+    $(error At least one source file (*.ino, *.pde, *.cpp, *c, *cc, *.S) is needed)
 endif
 
 ifeq ($(strip $(NO_CORE)),)