diff --git a/conf/Makefile.nps b/conf/Makefile.nps
index 3fc929dcca1..8e1d50063dd 100644
--- a/conf/Makefile.nps
+++ b/conf/Makefile.nps
@@ -39,6 +39,7 @@ CFLAGS += $(LOCAL_CFLAGS)
 CFLAGS += -O$(OPT)
 CFLAGS += -g
 CFLAGS += -std=gnu99
+CFLAGS += $(shell pkg-config --cflags-only-I ivy-glib)
 
 CXXFLAGS  = -W -Wall
 CXXFLAGS += $(INCLUDES)
@@ -46,6 +47,7 @@ CXXFLAGS += $($(TARGET).CFLAGS)
 CXXFLAGS += $(LOCAL_CFLAGS)
 CXXFLAGS += -O$(OPT)
 CXXFLAGS += -g
+CXXFLAGS += $(shell pkg-config --cflags-only-I ivy-glib)
 
 LDFLAGS	+= $($(TARGET).LDFLAGS)
 
diff --git a/conf/Makefile.sim b/conf/Makefile.sim
index 24de69e39b3..b9cf412d4f0 100644
--- a/conf/Makefile.sim
+++ b/conf/Makefile.sim
@@ -56,6 +56,7 @@ CFLAGS += -fPIC
 CFLAGS += -O$(OPT)
 CFLAGS += -g
 CFLAGS += -std=gnu99
+CFLAGS += $(shell pkg-config --cflags-only-I ivy-glib)
 
 LDFLAGS		=	-lm