diff --git a/Makefile.common b/Makefile.common
index 5aac235..1a79450 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -5,6 +5,11 @@ PROJECT = TimedPetriNetEditor
 STANDARD = --std=c++14
 BUILD_TYPE = release
 
+###################################################
+# Select the Dear ImGui backend: RayLib or GLFW3.
+#
+DEAR_IMGUI_BACKEND ?= RayLib
+
 ###################################################
 # Reduce warnings
 #
diff --git a/src/Editor/DearImGui/Makefile.imgui b/src/Editor/DearImGui/Makefile.imgui
index 7a20da3..eb3f1a2 100644
--- a/src/Editor/DearImGui/Makefile.imgui
+++ b/src/Editor/DearImGui/Makefile.imgui
@@ -1,8 +1,3 @@
-###################################################
-# Select the Dear ImGui backend: RayLib or GLFW3.
-#
-DEAR_IMGUI_BACKEND ?= GLFW3
-
 ###################################################
 # If compiling for HTML5 (Emscripten) then force
 # using Raylib backend since GLFW3 is not compilable.
diff --git a/src/julia/Makefile b/src/julia/Makefile
index 2f47ca4..975d894 100644
--- a/src/julia/Makefile
+++ b/src/julia/Makefile
@@ -16,20 +16,11 @@ DESCRIPTION = Timed Petri Net Editor interface for Julia
 # Location of the project directory and Makefiles
 #
 include $(M)/Makefile.header
-
-###################################################
-# Internal libraries since we can call the GUI from Julia REPL
-#
-LIB_TPNE_CORE = $(abspath $(P)/src/Net/$(BUILD)/libtimedpetrinetcore.a)
-LIB_TPNE_GUI = $(abspath $(P)/src/Editor/$(BUILD)/libtimedpetrinetgui.a)
-THIRDPART_LIBS += $(LIB_TPNE_GUI) $(LIB_TPNE_CORE)
-PKG_LIBS += --static glfw3
-LINKER_FLAGS += -lGL
+include $(P)/src/Editor/DearImGui/Makefile.imgui
 
 ###################################################
 # Inform Makefile where to find *.cpp files
 #
-include $(P)/src/Editor/DearImGui/Makefile.imgui
 VPATH += $(P)/include $(P)/src $(P)/src/Utils $(P)/src/Net
 VPATH += $(P)/src/Net/Imports VPATH += $(P)/src/Net/Exports
 
@@ -38,6 +29,16 @@ VPATH += $(P)/src/Net/Imports VPATH += $(P)/src/Net/Exports
 #
 INCLUDES += -I$(P)/include -I$(P)/src -I$(P)/external
 
+###################################################
+# Internal libraries since we can call the GUI from Julia REPL
+#
+LIB_TPNE_CORE = $(abspath $(P)/src/Net/$(BUILD)/libtimedpetrinetcore.a)
+LIB_TPNE_GUI = $(abspath $(P)/src/Editor/$(BUILD)/libtimedpetrinetgui.a)
+PKG_LIBS += --static glfw3
+LINKER_FLAGS += -lGL
+# WARNING: do not use += since we do not want to include twice libraylib.a
+THIRDPART_LIBS := $(LIB_TPNE_GUI) $(LIB_TPNE_CORE)
+
 ###################################################
 # Make the list of compiled files for the library
 #