diff --git a/desmume/src/frontend/posix/gtk/Makefile.am b/desmume/src/frontend/posix/gtk/Makefile.am
index 63a1d7b08..cbef8a0e2 100644
--- a/desmume/src/frontend/posix/gtk/Makefile.am
+++ b/desmume/src/frontend/posix/gtk/Makefile.am
@@ -21,6 +21,7 @@ desmume_SOURCES = \
 	desmume.h desmume.cpp \
 	dTool.h dToolsList.cpp \
 	tools/ioregsView.cpp tools/ioregsView.h \
+	utilsGTK.h utilsGTK.cpp \
 	cheatsGTK.h cheatsGTK.cpp \
 	main.cpp main.h
 
diff --git a/desmume/src/frontend/posix/gtk2/Makefile.am b/desmume/src/frontend/posix/gtk2/Makefile.am
index 7554f5b52..6dc462ab6 100644
--- a/desmume/src/frontend/posix/gtk2/Makefile.am
+++ b/desmume/src/frontend/posix/gtk2/Makefile.am
@@ -21,6 +21,7 @@ desmume_SOURCES = \
 	desmume.h desmume.cpp \
 	dTool.h dToolsList.cpp \
 	tools/ioregsView.cpp tools/ioregsView.h \
+	utilsGTK.h utilsGTK.cpp \
 	cheatsGTK.h cheatsGTK.cpp \
 	main.cpp main.h