diff --git a/modules/git/repo_language_stats.go b/modules/git/repo_language_stats.go
index 8ff8fa20c1f6a..2e5a0534c4510 100644
--- a/modules/git/repo_language_stats.go
+++ b/modules/git/repo_language_stats.go
@@ -20,6 +20,18 @@ import (
 
 const fileSizeLimit int64 = 16 * 1024 * 1024
 
+// specialLanguages defines list of languages that are excluded from the calculation
+// unless they are the only language present in repository. Only languages which under
+// normal circumstances are not considered to be code should be listed here.
+var specialLanguages = []string{
+	"YAML",
+	"JSON",
+	"SVG",
+	"Text",
+	"Markdown",
+	"TOML",
+}
+
 // GetLanguageStats calculates language stats for git repository at specified commit
 func (repo *Repository) GetLanguageStats(commitID string) (map[string]float32, error) {
 	r, err := git.PlainOpen(repo.Path)
@@ -72,6 +84,14 @@ func (repo *Repository) GetLanguageStats(commitID string) (map[string]float32, e
 		return nil, err
 	}
 
+	// filter special languages unless they are the only language
+	if len(sizes) > 1 {
+		for _, language := range specialLanguages {
+			total -= sizes[language]
+			delete(sizes, language)
+		}
+	}
+
 	stats := make(map[string]float32)
 	var otherPerc float32 = 100
 	for language, size := range sizes {