diff --git a/objdiff-core/build.rs b/objdiff-core/build.rs
index fdd4e63..48e1a34 100644
--- a/objdiff-core/build.rs
+++ b/objdiff-core/build.rs
@@ -19,7 +19,15 @@ fn compile_protos() {
         .map(|m| m.modified().unwrap())
         .unwrap_or(std::time::SystemTime::UNIX_EPOCH);
     let mut run_protoc = false;
-    let proto_files = vec![root.join("report.proto")];
+    let proto_files = root
+        .read_dir()
+        .unwrap()
+        .filter_map(|e| {
+            let e = e.unwrap();
+            let path = e.path();
+            (path.extension() == Some(std::ffi::OsStr::new("proto"))).then_some(path)
+        })
+        .collect::<Vec<_>>();
     for proto_file in &proto_files {
         println!("cargo:rerun-if-changed={}", proto_file.display());
         let mtime = match std::fs::metadata(proto_file) {
diff --git a/objdiff-core/protos/changes.proto b/objdiff-core/protos/changes.proto
new file mode 100644
index 0000000..6355975
--- /dev/null
+++ b/objdiff-core/protos/changes.proto
@@ -0,0 +1,59 @@
+syntax = "proto3";
+
+import "report.proto";
+
+package objdiff.report;
+
+// A pair of reports to compare and generate changes
+message ChangesInput {
+  // The previous report
+  Report from = 1;
+  // The current report
+  Report to = 2;
+}
+
+// Changes between two reports
+message Changes {
+  // The progress info for the previous report
+  Measures from = 1;
+  // The progress info for the current report
+  Measures to = 2;
+  // Units that changed
+  repeated ChangeUnit units = 3;
+}
+
+// A changed unit
+message ChangeUnit {
+  // The name of the unit
+  string name = 1;
+  // The previous progress info (omitted if new)
+  optional Measures from = 2;
+  // The current progress info (omitted if removed)
+  optional Measures to = 3;
+  // Sections that changed
+  repeated ChangeItem sections = 4;
+  // Functions that changed
+  repeated ChangeItem functions = 5;
+  // Extra metadata for this unit
+  optional ReportUnitMetadata metadata = 6;
+}
+
+// A changed section or function
+message ChangeItem {
+  // The name of the item
+  string name = 1;
+  // The previous progress info (omitted if new)
+  optional ChangeItemInfo from = 2;
+  // The current progress info (omitted if removed)
+  optional ChangeItemInfo to = 3;
+  // Extra metadata for this item
+  optional ReportItemMetadata metadata = 4;
+}
+
+// Progress info for a section or function
+message ChangeItemInfo {
+  // The overall match percent for this item
+  float fuzzy_match_percent = 1;
+  // The size of the item in bytes
+  uint64 size = 2;
+}
diff --git a/objdiff-core/protos/proto_descriptor.bin b/objdiff-core/protos/proto_descriptor.bin
index 9312c29..c281ade 100644
Binary files a/objdiff-core/protos/proto_descriptor.bin and b/objdiff-core/protos/proto_descriptor.bin differ
diff --git a/objdiff-core/protos/report.proto b/objdiff-core/protos/report.proto
index ed7ebb8..279bbb0 100644
--- a/objdiff-core/protos/report.proto
+++ b/objdiff-core/protos/report.proto
@@ -2,6 +2,18 @@ syntax = "proto3";
 
 package objdiff.report;
 
+// Project progress report
+message Report {
+  // Overall progress info
+  Measures measures = 1;
+  // Units within this report
+  repeated ReportUnit units = 2;
+  // Report version
+  uint32 version = 3;
+  // Progress categories
+  repeated ReportCategory categories = 4;
+}
+
 // Progress info for a report or unit
 message Measures {
   // Overall match percent, including partially matched functions and data
@@ -38,18 +50,6 @@ message Measures {
   uint32 complete_units = 16;
 }
 
-// Project progress report
-message Report {
-  // Overall progress info
-  Measures measures = 1;
-  // Units within this report
-  repeated ReportUnit units = 2;
-  // Report version
-  uint32 version = 3;
-  // Progress categories
-  repeated ReportCategory categories = 4;
-}
-
 message ReportCategory {
   // The ID of the category
   string id = 1;
@@ -108,57 +108,3 @@ message ReportItemMetadata {
   // The virtual address of the function or section
   optional uint64 virtual_address = 2;
 }
-
-// A pair of reports to compare and generate changes
-message ChangesInput {
-  // The previous report
-  Report from = 1;
-  // The current report
-  Report to = 2;
-}
-
-// Changes between two reports
-message Changes {
-  // The progress info for the previous report
-  Measures from = 1;
-  // The progress info for the current report
-  Measures to = 2;
-  // Units that changed
-  repeated ChangeUnit units = 3;
-}
-
-// A changed unit
-message ChangeUnit {
-  // The name of the unit
-  string name = 1;
-  // The previous progress info (omitted if new)
-  optional Measures from = 2;
-  // The current progress info (omitted if removed)
-  optional Measures to = 3;
-  // Sections that changed
-  repeated ChangeItem sections = 4;
-  // Functions that changed
-  repeated ChangeItem functions = 5;
-  // Extra metadata for this unit
-  optional ReportUnitMetadata metadata = 6;
-}
-
-// A changed section or function
-message ChangeItem {
-  // The name of the item
-  string name = 1;
-  // The previous progress info (omitted if new)
-  optional ChangeItemInfo from = 2;
-  // The current progress info (omitted if removed)
-  optional ChangeItemInfo to = 3;
-  // Extra metadata for this item
-  optional ReportItemMetadata metadata = 4;
-}
-
-// Progress info for a section or function
-message ChangeItemInfo {
-  // The overall match percent for this item
-  float fuzzy_match_percent = 1;
-  // The size of the item in bytes
-  uint64 size = 2;
-}