diff --git a/dependencies.sh b/dependencies.sh
index 7a4cca92e44..12fce4e866a 100755
--- a/dependencies.sh
+++ b/dependencies.sh
@@ -10,7 +10,7 @@ export BYOND_MAJOR=512
 export BYOND_MINOR=1441
 
 #rust_g git tag
-export RUST_G_VERSION=0.3.0
+export RUST_G_VERSION=0.4.0
 
 #bsql git tag
 export BSQL_VERSION=v1.4.0.0
diff --git a/tools/travis/build_dependencies.sh b/tools/travis/build_dependencies.sh
index 69f5e1e1191..9e594733ea7 100755
--- a/tools/travis/build_dependencies.sh
+++ b/tools/travis/build_dependencies.sh
@@ -22,6 +22,7 @@ if [ $BUILD_TOOLS = false ] && [ $BUILD_TESTING = false ]; then
     git fetch --depth 1 origin $RUST_G_VERSION
     git checkout FETCH_HEAD
     cargo build --release
+    cmp target/rust_g.dm ../code/__DEFINES/rust_g.dm
 
     mkdir -p ~/.byond/bin
     ln -s $PWD/target/release/librust_g.so ~/.byond/bin/rust_g