diff --git a/k9mail/src/main/java/com/fsck/k9/mailstore/StoreSchemaDefinition.java b/k9mail/src/main/java/com/fsck/k9/mailstore/StoreSchemaDefinition.java
index e57930a65..c8c2b187d 100644
--- a/k9mail/src/main/java/com/fsck/k9/mailstore/StoreSchemaDefinition.java
+++ b/k9mail/src/main/java/com/fsck/k9/mailstore/StoreSchemaDefinition.java
@@ -108,7 +108,7 @@ class StoreSchemaDefinition implements LockableDatabase.SchemaDefinition {
                         "encoding TEXT, " +
                         "charset TEXT, " +
                         "data_location INTEGER NOT NULL, " +
-                        "data TEXT, " +
+                        "data BLOB, " +
                         "preamble TEXT, " +
                         "epilogue TEXT, " +
                         "boundary TEXT, " +