diff --git a/libargv/Makefile b/libargv/Makefile
index 6df0787..d234005 100644
--- a/libargv/Makefile
+++ b/libargv/Makefile
@@ -13,7 +13,7 @@ CPPFLAGS	=
 LDFLAGS		=
 
 .SUFFIXES:
-.SUFFIXES:	.c .o .a
+.SUFFIXES:	.c .o
 
 .c.o:
 	$(CC) $(CFLAGS) $(CPPFLAGS) -c $<
diff --git a/libconfigfile/Makefile b/libconfigfile/Makefile
index 3a25cb9..f175a25 100644
--- a/libconfigfile/Makefile
+++ b/libconfigfile/Makefile
@@ -13,7 +13,7 @@ CPPFLAGS	=
 LDFLAGS		=
 
 .SUFFIXES:
-.SUFFIXES:	.c .o .a
+.SUFFIXES:	.c .o
 
 .c.o:
 	$(CC) $(CFLAGS) $(CPPFLAGS) -c $<
diff --git a/liblists/Makefile b/liblists/Makefile
index 9bd40ef..30dc023 100644
--- a/liblists/Makefile
+++ b/liblists/Makefile
@@ -13,7 +13,7 @@ CPPFLAGS	=
 LDFLAGS		=
 
 .SUFFIXES:
-.SUFFIXES:	.c .o .a
+.SUFFIXES:	.c .o
 
 .c.o:
 	$(CC) $(CFLAGS) $(CPPFLAGS) -c $<
diff --git a/libtext/Makefile b/libtext/Makefile
index 73b73dc..6fd6195 100644
--- a/libtext/Makefile
+++ b/libtext/Makefile
@@ -16,7 +16,7 @@ OBJECTS		= easy_pattern_match.o find_next_line.o find_string.o \
 		  easy_sprintf.o transform_text.o wordwrap.o
 
 .SUFFIXES:
-.SUFFIXES:	.c .o .a
+.SUFFIXES:	.c .o
 
 .c.o:
 	$(CC) $(CFLAGS) $(CPPFLAGS) -c $<