diff --git a/src/data/mime_db/image/x-portable-bitmap b/src/data/mime_db/image/x-portable-bitmap
new file mode 100644
index 0000000000..8ebfdd07dd
--- /dev/null
+++ b/src/data/mime_db/image/x-portable-bitmap
@@ -0,0 +1,13 @@
+
+resource(0, "BEOS:TYPE") #'MIMS' "application/x-vnd.Be-meta-mime";
+
+resource(1, "META:TYPE") "image/x-portable-bitmap";
+
+resource(2, "META:SNIFF_RULE") "0.50 (\"P4\")";
+
+resource(3, "META:S:DESC") #'MSDC' "PBM image";
+
+resource(4, "META:EXTENS") message(234) {
+	"extensions" = "pbm",
+	"type" = "image/x-portable-bitmap"
+};
diff --git a/src/data/mime_db/image/x-portable-graymap b/src/data/mime_db/image/x-portable-graymap
new file mode 100644
index 0000000000..cee960f1c4
--- /dev/null
+++ b/src/data/mime_db/image/x-portable-graymap
@@ -0,0 +1,13 @@
+
+resource(0, "BEOS:TYPE") #'MIMS' "application/x-vnd.Be-meta-mime";
+
+resource(1, "META:TYPE") "image/x-portable-graymap";
+
+resource(2, "META:SNIFF_RULE") "0.50 (\"P5\")";
+
+resource(3, "META:S:DESC") #'MSDC' "PGM image";
+
+resource(4, "META:EXTENS") message(234) {
+	"extensions" = "pgm",
+	"type" = "image/x-portable-graymap"
+};