diff --git a/Makefile b/Makefile
index 2fb10fd..dbb69da 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 PROG=		sndlock
 SRCS=		imgui_impl_glfw.cpp imgui_impl_opengl3.cpp imgui_draw.cpp imgui_widgets.cpp imgui_tables.cpp imgui.cpp sndlock.cpp
-CXXOPTS=	`pkg-config --cflags glfw3 gl`
+CXXOPTS=	-Wall `pkg-config --cflags glfw3 gl`
 LDFLAGS=	`pkg-config --libs glfw3 gl`
 LDADD=		-lsndio -lm