diff --git a/pkg.c b/pkg.c
index bbec897..6a284c6 100644
--- a/pkg.c
+++ b/pkg.c
@@ -337,6 +337,7 @@ int
 pkg_compare_version(const char *a, const char *b)
 {
 	char oldch1, oldch2;
+	char buf1[BUFSIZ], buf2[BUFSIZ];
 	char *str1, *str2;
 	char *one, *two;
 	int ret;
@@ -346,11 +347,11 @@ pkg_compare_version(const char *a, const char *b)
 	if (!strcasecmp(a, b))
 		return 0;
 
-	str1 = PKG_LOCAL_COPY(a);
-	str2 = PKG_LOCAL_COPY(b);
+	strlcpy(buf1, a, sizeof buf1);
+	strlcpy(buf2, b, sizeof buf2);
 
-	one = str1;
-	two = str2;
+	one = str1 = buf1;
+	two = str2 = buf2;
 
 	while (*one && *two)
 	{
diff --git a/pkg.h b/pkg.h
index c1dbd3c..db8966f 100644
--- a/pkg.h
+++ b/pkg.h
@@ -56,9 +56,6 @@ typedef struct pkg_fragment_ pkg_fragment_t;
 #define PKG_FOREACH_LIST_ENTRY_SAFE(head, nextiter, value) \
 	for ((value) = (head), (nextiter) = (head) != NULL ? (head)->next : NULL; (value) != NULL; (value) = (nextiter), (nextiter) = (nextiter) != NULL ? (nextiter)->next : NULL)
 
-#define PKG_LOCAL_COPY(a) \
-	strcpy(alloca(strlen(a) + 1), a)
-
 #define PKG_MIN(a,b) (((a) < (b)) ? (a) : (b))
 #define PKG_MAX(a,b) (((a) > (b)) ? (a) : (b))