diff --git a/libfatstr/Makefile b/libfatstr/Makefile
index 222a846..d432184 100644
--- a/libfatstr/Makefile
+++ b/libfatstr/Makefile
@@ -1,2 +1,2 @@
 libfatstr.o: libfatstr.c libfatstr.h
-	$(CC) -g -o libfatstr.o libfatstr.c
+	$(CC) -c -g -o libfatstr.o libfatstr.c
diff --git a/libfatstr/libfatstr.c b/libfatstr/libfatstr.c
index 3279e5e..dc1e58a 100644
--- a/libfatstr/libfatstr.c
+++ b/libfatstr/libfatstr.c
@@ -1,6 +1,6 @@
 #include <stdlib.h> /* free(3), malloc(3), realloc(3) */
 #include <string.h> /* strncpy(3) */
-#include "fatstr.h"
+#include "libfatstr.h"
 
 /* quick and dirty ASCII edition */
 
diff --git a/libfatstr/libfatstr.h b/libfatstr/libfatstr.h
index bd78287..0f56839 100644
--- a/libfatstr/libfatstr.h
+++ b/libfatstr/libfatstr.h
@@ -1,6 +1,6 @@
-typedef FatStr_size_t size_t;
-typedef FatStr_scalar_t int;
-typedef FatStr_vector_t FatStr_scalar_t *;
+typedef size_t FatStr_size_t;
+typedef int FatStr_scalar_t;
+typedef FatStr_scalar_t * FatStr_vector_t;
 
 struct FatStr{
 	FatStr_size_t a; /* allocation */
@@ -9,7 +9,7 @@ struct FatStr{
 };
 
 struct FatStr *FatStr_append(struct FatStr *p, FatStr_scalar_t c);
-FatStr_vector_t FatStr_convert(struct FatStr *p);
+char *FatStr_convert(struct FatStr *p);
 struct FatStr *FatStr_destruct(struct FatStr *p);
 struct FatStr *FatStr_initialize(struct FatStr *p);
-struct FatStr *FatStr_trimfront(
+struct FatStr *FatStr_trimfront();