diff --git a/bin/xbps-install/main.c b/bin/xbps-install/main.c
index c626d407b..0a88b800d 100644
--- a/bin/xbps-install/main.c
+++ b/bin/xbps-install/main.c
@@ -53,6 +53,7 @@ usage(bool fail)
 	    " -h, --help                  Show usage\n"
 	    " -i, --ignore-conf-repos     Ignore repositories defined in xbps.d\n"
 	    " -I, --ignore-file-conflicts Ignore detected file conflicts\n"
+	    " -T, --trust-disk-space      Don't fail from insufficient disk space for transaction\n"
 	    " -U, --unpack-only           Unpack packages in transaction, do not configure them\n"
 	    " -M, --memory-sync           Remote repository data is fetched and stored\n"
 	    "                             in memory, ignoring on-disk repodata archives\n"
@@ -107,6 +108,7 @@ main(int argc, char **argv)
 		{ "help", no_argument, NULL, 'h' },
 		{ "ignore-conf-repos", no_argument, NULL, 'i' },
 		{ "ignore-file-conflicts", no_argument, NULL, 'I' },
+		{ "trust-disk-space", no_argument, NULL, 'T' },
 		{ "memory-sync", no_argument, NULL, 'M' },
 		{ "dry-run", no_argument, NULL, 'n' },
 		{ "repository", required_argument, NULL, 'R' },
@@ -183,6 +185,9 @@ main(int argc, char **argv)
 		case 'S':
 			syncf = true;
 			break;
+		case 'T':
+			flags |= XBPS_FLAG_IGNORE_DISK_SPACE;
+			break;
 		case 'U':
 			flags |= XBPS_FLAG_UNPACK_ONLY;
 			break;
diff --git a/include/xbps.h.in b/include/xbps.h.in
index b0f421569..8e3194893 100644
--- a/include/xbps.h.in
+++ b/include/xbps.h.in
@@ -240,6 +240,13 @@
  */
 #define XBPS_FLAG_KEEP_CONFIG 		0x00010000
 
+/**
+ * @def XBPS_FLAG_IGNORE_DISK_SPACE
+ * Skips checking disk space available and disk space needed.
+ * Must be set through the xbps_handle::flags member.
+ */
+#define XBPS_FLAG_IGNORE_DISK_SPACE	0x00020000
+
 /**
  * @def XBPS_FETCH_CACHECONN
  * Default (global) limit of cached connections used in libfetch.
diff --git a/lib/transaction_prepare.c b/lib/transaction_prepare.c
index b6ff1a9d1..bb4ec7d06 100644
--- a/lib/transaction_prepare.c
+++ b/lib/transaction_prepare.c
@@ -169,21 +169,22 @@ compute_transaction_stats(struct xbps_handle *xhp)
 				"total-removed-size", rmsize))
 		return EINVAL;
 
-	/* Get free space from target rootdir: return ENOSPC if there's not enough space */
-	if (statvfs(xhp->rootdir, &svfs) == -1) {
-		xbps_dbg_printf(xhp, "%s: statvfs failed: %s\n", __func__, strerror(errno));
-		return 0;
-	}
-	/* compute free space on disk */
-	rootdir_free_size = svfs.f_bfree * svfs.f_bsize;
-
-	if (!xbps_dictionary_set_uint64(xhp->transd,
-				"disk-free-size", rootdir_free_size))
-		return EINVAL;
+	if (xhp->flags & XBPS_FLAG_IGNORE_DISK_SPACE) {
+		/* Get free space from target rootdir: return ENOSPC if there's not enough space */
+		if (statvfs(xhp->rootdir, &svfs) == -1) {
+			xbps_dbg_printf(xhp, "%s: statvfs failed: %s\n", __func__, strerror(errno));
+			return 0;
+		}
+		/* compute free space on disk */
+		rootdir_free_size = svfs.f_bfree * svfs.f_bsize;
 
-	if (instsize > rootdir_free_size)
-		return ENOSPC;
+		if (!xbps_dictionary_set_uint64(xhp->transd,
+					"disk-free-size", rootdir_free_size))
+			return EINVAL;
 
+		if (instsize > rootdir_free_size)
+			return ENOSPC;
+	}
 	return 0;
 }