diff --git a/eth/backend_test.go b/exp/backend_test.go
similarity index 100%
rename from eth/backend_test.go
rename to exp/backend_test.go
diff --git a/eth/cpu_mining.go b/exp/cpu_mining.go
similarity index 100%
rename from eth/cpu_mining.go
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diff --git a/eth/downloader/modes.go b/exp/downloader/modes.go
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diff --git a/eth/downloader/types.go b/exp/downloader/types.go
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diff --git a/eth/filters/filter.go b/exp/filters/filter.go
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diff --git a/eth/filters/filter_system.go b/exp/filters/filter_system.go
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diff --git a/eth/filters/filter_test.go b/exp/filters/filter_test.go
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rename from eth/filters/filter_test.go
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diff --git a/eth/gpu_mining.go b/exp/gpu_mining.go
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rename from eth/gpu_mining.go
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diff --git a/eth/sync_test.go b/exp/sync_test.go
similarity index 100%
rename from eth/sync_test.go
rename to exp/sync_test.go