diff --git a/Makefile b/Makefile
index 596d6e2c..4773371f 100644
--- a/Makefile
+++ b/Makefile
@@ -69,7 +69,7 @@ SELECTED_FLAGS = AD AE AF AG AI AL AM AO AR AS AT AU AW AX AZ \
 	WS \
 	YE \
 	ZA ZM ZW
-ALL_FLAGS = ($basename ($notdir $(wildcard $(FLAGS_SRC_DIR)/*.png)))
+ALL_FLAGS = $(basename $(notdir $(wildcard $(FLAGS_SRC_DIR)/*.png)))
 
 FLAGS = $(SELECTED_FLAGS)
 
@@ -173,7 +173,7 @@ $(QUANTIZED_DIR)/%.png: $(EMOJI_DIR)/%.png $(PNGQUANT) | $(QUANTIZED_DIR)
 
 $(COMPRESSED_DIR)/%.png: $(QUANTIZED_DIR)/%.png | check_compress_tool $(COMPRESSED_DIR)
 ifdef MISSING_ZOPFLI
-	$(OPTIPNG) -quiet -o7 -force -out "$@" "$<"
+	$(OPTIPNG) -quiet -o7 -clobber -force -out "$@" "$<"
 else
 	$(ZOPFLIPNG) -y "$<" "$@" 2> /dev/null
 endif
diff --git a/third_party/color_emoji/add_glyphs.py b/third_party/color_emoji/add_glyphs.py
index 14e19682..26f99b4e 100644
--- a/third_party/color_emoji/add_glyphs.py
+++ b/third_party/color_emoji/add_glyphs.py
@@ -147,9 +147,9 @@ def add_lig_sequence(ligatures, seq, n):
                 rev_seq = seq[:]
                 rev_seq.reverse()
                 trseq = tuple(rev_seq)
-                if trseq in ligatures:
-                        # print 'rev lig sequence %s, replace %s with %s' % (
-                        #    trseq, ligatures[trseq], n)
+                # if trseq in ligatures:
+                #        print 'rev lig sequence %s, replace %s with %s' % (
+                #        trseq, ligatures[trseq], n)
                 ligatures[trseq] = n