diff --git a/unit/GNUmakefile b/unit/GNUmakefile
index 92f23013..6dde8b40 100644
--- a/unit/GNUmakefile
+++ b/unit/GNUmakefile
@@ -6,7 +6,7 @@ CXXFLAGS            = -g -O2 -Wall
 CXXLINK             = $(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@
 DEFS                = -DNDEBUG -DSWIG_SHARED_OBJ -DPHREEQC_CPP -DPHREEQC_CLASS -DUSE_PHRQ_ALLOC -DCPPUNIT
 DEPDIR              = .deps
-INCLUDES            = -I../include -I../src -I../src/phreeqcpp -I../src/phreeqcpp/phreeqc -I$(CPPUNIT)/include
+INCLUDES            = -I../src -I../src/phreeqcpp -I../src/phreeqcpp/phreeqc -I$(CPPUNIT)/include
 LDFLAGS             = -L$(CPPUNIT)/lib 
 LIBS                = -lcppunit -ldl -lm
 MKDIR_P             = /bin/mkdir -p