diff --git a/src/external/BMWtools/Makefile.am b/src/external/BMWtools/Makefile.am
index ffdbfd18..80bbb696 100644
--- a/src/external/BMWtools/Makefile.am
+++ b/src/external/BMWtools/Makefile.am
@@ -23,7 +23,7 @@ dict_cpp_sources = \
 include_HEADERS = $(h_sources)
 noinst_HEADERS = $(h_linkdef) $(dict_h_sources)
 
-AM_CPPFLAGS = -I$(top_srcdir)/src/include $(LEM_CFLAGS) $(PMUSR_CFLAGS) $(CUBA_CFLAGS) $(ROOT_CFLAGS)
+AM_CPPFLAGS = -I$(top_srcdir)/src/include $(LEM_CFLAGS) $(PMUSR_CFLAGS) $(CUBA_CFLAGS) -I$(ROOTINCDIR)
 AM_CXXFLAGS = $(LOCAL_LIB_CXXFLAGS)
 
 BUILT_SOURCES = $(dict_cpp_sources) $(dict_h_sources)
diff --git a/src/external/libCalcMeanFieldsLEM/Makefile.am b/src/external/libCalcMeanFieldsLEM/Makefile.am
index 9ae89c88..15967c62 100644
--- a/src/external/libCalcMeanFieldsLEM/Makefile.am
+++ b/src/external/libCalcMeanFieldsLEM/Makefile.am
@@ -19,7 +19,7 @@ dict_cpp_sources = \
 include_HEADERS = $(h_sources)
 noinst_HEADERS = $(h_linkdef) $(dict_h_sources)
 
-AM_CPPFLAGS = -I$(top_srcdir)/src/include $(BMWTOOLS_CFLAGS) $(FITPOFB_CFLAGS) $(PMUSR_CFLAGS) $(ROOT_CFLAGS) $(FFTW3_CFLAGS)
+AM_CPPFLAGS = -I$(top_srcdir)/src/include $(BMWTOOLS_CFLAGS) $(FITPOFB_CFLAGS) $(PMUSR_CFLAGS) -I$(ROOTINCDIR) $(FFTW3_CFLAGS)
 AM_CXXFLAGS = $(LOCAL_LIB_CXXFLAGS)
 
 BUILT_SOURCES = $(dict_cpp_sources) $(dict_h_sources)
diff --git a/src/external/libZFRelaxation/Makefile.am b/src/external/libZFRelaxation/Makefile.am
index d61a17b1..c5aebf23 100644
--- a/src/external/libZFRelaxation/Makefile.am
+++ b/src/external/libZFRelaxation/Makefile.am
@@ -19,7 +19,7 @@ dict_cpp_sources = \
 include_HEADERS = $(h_sources)
 noinst_HEADERS = $(h_linkdef) $(dict_h_sources)
 
-AM_CPPFLAGS = -I$(top_srcdir)/src/include $(BMWTOOLS_CFLAGS) $(PMUSR_CFLAGS) $(ROOT_CFLAGS)
+AM_CPPFLAGS = -I$(top_srcdir)/src/include $(BMWTOOLS_CFLAGS) $(PMUSR_CFLAGS) -I$(ROOTINCDIR)
 AM_CXXFLAGS = $(LOCAL_LIB_CXXFLAGS)
 
 BUILT_SOURCES = $(dict_cpp_sources) $(dict_h_sources)