diff --git a/mongobin/downloadSpec.go b/mongobin/downloadSpec.go
index 4e98acb..65b7974 100644
--- a/mongobin/downloadSpec.go
+++ b/mongobin/downloadSpec.go
@@ -34,6 +34,7 @@ type DownloadSpec struct {
 	// - ubuntu1804
 	// - ubuntu1604
 	// - ubuntu1404
+	// - debian10
 	// - debian92
 	// - debian81
 	// - suse12
@@ -198,15 +199,7 @@ func osNameFromOsRelease(osRelease map[string]string, mongoVersion []int) string
 
 	switch id {
 	case "ubuntu":
-		if majorVersion >= 18 && versionGTE(mongoVersion, []int{4, 0, 1}) {
-			return "ubuntu1804"
-		}
-		if majorVersion >= 16 && versionGTE(mongoVersion, []int{3, 2, 7}) {
-			return "ubuntu1604"
-		}
-		if majorVersion >= 14 {
-			return "ubuntu1404"
-		}
+		return osNameFromUbuntuRelease(majorVersion, mongoVersion)
 	case "sles":
 		if majorVersion >= 12 {
 			return "suse12"
@@ -216,24 +209,48 @@ func osNameFromOsRelease(osRelease map[string]string, mongoVersion []int) string
 			return "rhel70"
 		}
 	case "debian":
-		if majorVersion >= 9 && versionGTE(mongoVersion, []int{3, 6, 5}) {
-			return "debian92"
-		}
-		if majorVersion >= 8 && versionGTE(mongoVersion, []int{3, 2, 8}) {
-			return "debian81"
-		}
+		return osNameFromDebianRelease(majorVersion, mongoVersion)
 	case "amzn":
-		if majorVersion == 2 && versionGTE(mongoVersion, []int{4, 0, 0}) {
-			return "amazon2"
-		}
+		return osNameFromAmznRelease(majorVersion, mongoVersion)
+	}
 
-		// Version before 2 has the release date, not a real version number
-		return "amazon"
+	return ""
+}
+func osNameFromUbuntuRelease(majorVersion int, mongoVersion []int) string {
+	if majorVersion >= 18 && versionGTE(mongoVersion, []int{4, 0, 1}) {
+		return "ubuntu1804"
+	}
+	if majorVersion >= 16 && versionGTE(mongoVersion, []int{3, 2, 7}) {
+		return "ubuntu1604"
 	}
+	if majorVersion >= 14 {
+		return "ubuntu1404"
+	}
+	return ""
+}
 
+func osNameFromDebianRelease(majorVersion int, mongoVersion []int) string {
+	if majorVersion >= 10 && versionGTE(mongoVersion, []int{4, 2, 1}) {
+		return "debian10"
+	}
+	if majorVersion >= 9 && versionGTE(mongoVersion, []int{3, 6, 5}) {
+		return "debian92"
+	}
+	if majorVersion >= 8 && versionGTE(mongoVersion, []int{3, 2, 8}) {
+		return "debian81"
+	}
 	return ""
 }
 
+func osNameFromAmznRelease(majorVersion int, mongoVersion []int) string {
+	if majorVersion == 2 && versionGTE(mongoVersion, []int{4, 0, 0}) {
+		return "amazon2"
+	}
+
+	// Version before 2 has the release date, not a real version number
+	return "amazon"
+}
+
 func osNameFromRedhatRelease(redhatRelease string) string {
 	// RHEL 7 uses /etc/os-release, so we're just detecting RHEL 6 here
 	if strings.Contains(redhatRelease, "release 6") {
diff --git a/mongobin/downloadSpec_test.go b/mongobin/downloadSpec_test.go
index 96ec4d6..b62886b 100644
--- a/mongobin/downloadSpec_test.go
+++ b/mongobin/downloadSpec_test.go
@@ -160,6 +160,53 @@ func TestMakeDownloadSpec(t *testing.T) {
 				OSName:         "rhel62",
 			},
 		},
+		"Debian buster": {
+			etcFolder: "debianbuster",
+
+			expectedSpec: &DownloadSpec{
+				Version:        testMongoVersion,
+				Platform:       "linux",
+				SSLBuildNeeded: false,
+				Arch:           "x86_64",
+				OSName:         "debian92",
+			},
+		},
+		"Debian buster new mongo": {
+			mongoVersion: "4.2.1",
+			etcFolder:    "debianbuster",
+
+			expectedSpec: &DownloadSpec{
+				Version:        "4.2.1",
+				Platform:       "linux",
+				SSLBuildNeeded: false,
+				Arch:           "x86_64",
+				OSName:         "debian10",
+			},
+		},
+		"Debian buster older mongo": {
+			mongoVersion: "3.6.4",
+			etcFolder:    "debianbuster",
+
+			expectedSpec: &DownloadSpec{
+				Version:        "3.6.4",
+				Platform:       "linux",
+				SSLBuildNeeded: false,
+				Arch:           "x86_64",
+				OSName:         "debian81",
+			},
+		},
+		"Debian buster much older mongo": {
+			mongoVersion: "3.2.7",
+			etcFolder:    "debianbuster",
+
+			expectedSpec: &DownloadSpec{
+				Version:        "3.2.7",
+				Platform:       "linux",
+				SSLBuildNeeded: false,
+				Arch:           "x86_64",
+				OSName:         "",
+			},
+		},
 		"Debian stretch": {
 			etcFolder: "debianstretch",
 
diff --git a/mongobin/downloadURL_test.go b/mongobin/downloadURL_test.go
index 34a1f51..dc6765c 100644
--- a/mongobin/downloadURL_test.go
+++ b/mongobin/downloadURL_test.go
@@ -106,6 +106,17 @@ func TestGetDownloadURL(t *testing.T) {
 			mongoVersions: mongoVersionsToTest,
 			expectedURL:   "https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel62-VERSION.tgz",
 		},
+		"Debian buster": {
+			spec: &DownloadSpec{
+				Platform: "linux",
+				Arch:     "x86_64",
+				OSName:   "debian10",
+			},
+			mongoVersions: []string{
+				"4.2.1",
+			},
+			expectedURL: "https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-debian10-VERSION.tgz",
+		},
 		"Debian stretch": {
 			spec: &DownloadSpec{
 				Platform: "linux",
diff --git a/mongobin/testdata/etc/debianbuster/os-release b/mongobin/testdata/etc/debianbuster/os-release
new file mode 100644
index 0000000..e4d27d9
--- /dev/null
+++ b/mongobin/testdata/etc/debianbuster/os-release
@@ -0,0 +1,8 @@
+PRETTY_NAME="Debian GNU/Linux 10 (buster)"
+NAME="Debian GNU/Linux"
+VERSION_ID="10"
+VERSION="10 (buster)"
+ID=debian
+HOME_URL="https://www.debian.org/"
+SUPPORT_URL="https://www.debian.org/support"
+BUG_REPORT_URL="https://bugs.debian.org/"