diff --git a/Makefile b/Makefile
index 5639d4d..8157695 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ WAYLAND_SCANNER := wayland-scanner
 PREFIX ?= /usr/local
 BINDIR ?= $(PREFIX)/bin
 
-VERSION="0.3.1-git"
+VERSION="0.4.0"
 
 CFLAGS ?= -Wall -Wextra -Wno-unused-parameter -Wno-parentheses
 override CFLAGS += -DVERSION=\"$(VERSION)\"
diff --git a/glyph.c b/glyph.c
index 592c154..f7d9403 100644
--- a/glyph.c
+++ b/glyph.c
@@ -1470,7 +1470,7 @@ unsigned char *new_glyph(uint32_t id, uint32_t c, int cwidth)
 		NULL
 	};
 
-	bm.pixels = malloc(bm.w * bm.h);
+	bm.pixels = calloc(1, bm.w * bm.h);
 
 	get_glyph_origin(&font, glyph, &xmin, &ymin);
 	render(&bm, 0.35f, vertices, vcount, font.scale, font.scale,