diff --git a/Project.toml b/Project.toml
index 53ca051f..6aa154c6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "BinaryBuilderBase"
 uuid = "7f725544-6523-48cd-82d1-3fa08ff4056e"
 authors = ["Elliot Saba <staticfloat@gmail.com>"]
-version = "0.6.4"
+version = "0.6.5"
 
 [deps]
 CodecZlib = "944b1d66-785c-5afd-91f1-9de20f533193"
diff --git a/src/Prefix.jl b/src/Prefix.jl
index 7c5b909d..ba608dfb 100644
--- a/src/Prefix.jl
+++ b/src/Prefix.jl
@@ -109,12 +109,13 @@ function includedir(prefix::Prefix)
 end
 
 """
-    logdir(prefix::Prefix)
+    logdir(prefix::Prefix; subdir::AbstractString="")
 
-Returns the logs directory for the given `prefix`.
+Returns the logs directory for the given `prefix`.  If `subdir` is a non-empty string, that
+directory it is appended to the logdir of the given `prefix`.
 """
-function logdir(prefix::Prefix)
-    return joinpath(prefix, "logs")
+function logdir(prefix::Prefix; subdir::AbstractString="")
+    return strip_backslash(joinpath(prefix, "logs", subdir))
 end
 
 """
diff --git a/src/utils.jl b/src/utils.jl
index 2b5a5005..8a2147e5 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -1,7 +1,7 @@
 # The functions in this file may not be used anywhere in this package but may
 # needed by different modules of BinaryBuilder.jl
 
-with_logfile(f::Function, prefix::Prefix, name::String) = with_logfile(f, joinpath(logdir(prefix), name))
+with_logfile(f::Function, prefix::Prefix, name::String; subdir="") = with_logfile(f, joinpath(logdir(prefix; subdir), name))
 function with_logfile(f::Function, logfile::String)
     mkpath(dirname(logfile))
 
diff --git a/test/prefix.jl b/test/prefix.jl
index 2ffe62e1..bf99f951 100644
--- a/test/prefix.jl
+++ b/test/prefix.jl
@@ -32,6 +32,7 @@ using CodecZlib
         @test bindir(prefix) == joinpath(prefix, "bin")
         @test includedir(prefix) == joinpath(prefix, "include")
         @test logdir(prefix) == joinpath(prefix, "logs")
+        @test logdir(prefix; subdir="test") == joinpath(prefix, "logs", "test")
     end
 end