diff --git a/Makefile b/Makefile
index bbbc4379cee64e236b530425dfca46f3fcd2aac6..fc8a13e7dda7fccf3bd60f345ac69fcf20615af0 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ export CXX		= g++
 #ifeq ($(DEBUG),1)
 #export CXXFLAGS = -Wall -O0 -g -fno-inline -fkeep-inline-functions -D_FILE_OFFSET_BITS=64 -fPIC -DDEBUG -D_DEBUG
 #else
-export CXXFLAGS = -Wall -O2 -D_FILE_OFFSET_BITS=64 -fPIC $(INCLUDE)
+export CXXFLAGS = -Wall -O2 -D_FILE_OFFSET_BITS=64 -fPIC $(INCLUDES)
 #endif
 export LIBS		= -lz
 export BT_ROOT  = src/utils/BamTools/