diff --git a/build.sh b/build.sh
index 66457dfa..12c92b5d 100755
--- a/build.sh
+++ b/build.sh
@@ -339,6 +339,8 @@ build_constantine() {
     git config --global --add safe.directory /home/ubuntu/constantine/constantine
     export PATH=$(pwd)/nim-2.0.4/bin:$PATH
     nimble make_lib
+    export JAVA_HOME=/usr/lib/jvm/java-21-openjdk-amd64
+    export PATH=$JAVA_HOME/bin:$PATH
   else
     export PATH=$HOME/.nimble/bin:$PATH
     nimble make_lib
diff --git a/native-build.sh b/native-build.sh
index fc54b9c5..d40179a6 100755
--- a/native-build.sh
+++ b/native-build.sh
@@ -13,6 +13,4 @@ curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain 1.75.0
 export PATH=$PATH:$CARGO_HOME/bin
 git config --global --add safe.directory /home/ubuntu/secp256r1/besu-native-ec
 git config --global --add safe.directory /home/ubuntu/secp256r1/besu-native-ec/openssl
-export JAVA_HOME=/usr/lib/jvm/java-21-openjdk-amd64
-export PATH=$JAVA_HOME/bin:$PATH
 /home/ubuntu/build.sh