diff --git a/changelog/unreleased/fix-freebsd.md b/changelog/unreleased/fix-freebsd.md
new file mode 100644
index 0000000000..476d3e1803
--- /dev/null
+++ b/changelog/unreleased/fix-freebsd.md
@@ -0,0 +1,5 @@
+Bugfix: Fix build on freebsd
+
+Building reva on freebsd was broken due to some deviations in return value types from the filesystem.
+
+https://github.com/cs3org/reva/pull/3559
diff --git a/pkg/storage/fs/owncloudsql/owncloudsql_unix.go b/pkg/storage/fs/owncloudsql/owncloudsql_unix.go
index 48ac614252..4d7500bfc6 100755
--- a/pkg/storage/fs/owncloudsql/owncloudsql_unix.go
+++ b/pkg/storage/fs/owncloudsql/owncloudsql_unix.go
@@ -78,8 +78,10 @@ func (fs *owncloudsqlfs) GetQuota(ctx context.Context, ref *provider.Reference)
 	if err != nil {
 		return 0, 0, 0, err
 	}
-	total := stat.Blocks * uint64(stat.Bsize)                // Total data blocks in filesystem
-	used := (stat.Blocks - stat.Bavail) * uint64(stat.Bsize) // Free blocks available to unprivileged user
+	// Total data blocks in filesystem
+	total := stat.Blocks * uint64(stat.Bsize)
+	// Free blocks available to unprivileged user
+	used := (stat.Blocks - uint64(stat.Bavail)) * uint64(stat.Bsize) //nolint:unconvert
 	remaining := total - used
 	return total, used, remaining, nil
 }
diff --git a/pkg/storage/utils/decomposedfs/node/node_unix.go b/pkg/storage/utils/decomposedfs/node/node_unix.go
index 05edf02158..0051557a7e 100644
--- a/pkg/storage/utils/decomposedfs/node/node_unix.go
+++ b/pkg/storage/utils/decomposedfs/node/node_unix.go
@@ -21,7 +21,9 @@
 
 package node
 
-import "syscall"
+import (
+	"syscall"
+)
 
 // GetAvailableSize stats the filesystem and return the available bytes
 func GetAvailableSize(path string) (uint64, error) {
@@ -30,5 +32,7 @@ func GetAvailableSize(path string) (uint64, error) {
 	if err != nil {
 		return 0, err
 	}
-	return stat.Bavail * uint64(stat.Bsize), nil
+
+	// convert stat.Bavail to uint64 because it returns an int64 on freebsd
+	return uint64(stat.Bavail) * uint64(stat.Bsize), nil //nolint:unconvert
 }
diff --git a/pkg/storage/utils/localfs/localfs_unix.go b/pkg/storage/utils/localfs/localfs_unix.go
index 8faebe5f14..8d8f43c6b6 100644
--- a/pkg/storage/utils/localfs/localfs_unix.go
+++ b/pkg/storage/utils/localfs/localfs_unix.go
@@ -76,8 +76,12 @@ func (fs *localfs) GetQuota(ctx context.Context, ref *provider.Reference) (uint6
 	if err != nil {
 		return 0, 0, 0, err
 	}
-	total := stat.Blocks * uint64(stat.Bsize)                // Total data blocks in filesystem
-	used := (stat.Blocks - stat.Bavail) * uint64(stat.Bsize) // Free blocks available to unprivileged user
-	remaining := stat.Bavail * uint64(stat.Bsize)
+	// Total data blocks in filesystem
+	total := stat.Blocks * uint64(stat.Bsize)
+	// Free blocks available to unprivileged user
+	// convert stat.Bavail to uint64 because it returns an int64 on freebsd
+	used := (stat.Blocks - uint64(stat.Bavail)) * uint64(stat.Bsize) //nolint:unconvert
+	// convert stat.Bavail to uint64 because it returns an int64 on freebsd
+	remaining := uint64(stat.Bavail) * uint64(stat.Bsize) //nolint:unconvert
 	return total, used, remaining, nil
 }