diff --git a/ci/aarch64-linux-debug.sh b/ci/aarch64-linux-debug.sh
index ca085d2779..94f40c557b 100644
--- a/ci/aarch64-linux-debug.sh
+++ b/ci/aarch64-linux-debug.sh
@@ -98,3 +98,9 @@ unset CXX
 ninja install
 
 stage3/bin/zig test ../test/behavior.zig -I../test
+stage3/bin/zig build -p stage4 \
+  -Dstatic-llvm \
+  -Dtarget=native-native-musl \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$(pwd)/../lib"
+stage4/bin/zig test ../test/behavior.zig -I../test
diff --git a/ci/aarch64-linux-release.sh b/ci/aarch64-linux-release.sh
index e3dc4530a8..65d6063f25 100644
--- a/ci/aarch64-linux-release.sh
+++ b/ci/aarch64-linux-release.sh
@@ -98,3 +98,9 @@ unset CXX
 ninja install
 
 stage3/bin/zig test ../test/behavior.zig -I../test
+stage3/bin/zig build -p stage4 \
+  -Dstatic-llvm \
+  -Dtarget=native-native-musl \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$(pwd)/../lib"
+stage4/bin/zig test ../test/behavior.zig -I../test
diff --git a/ci/x86_64-linux-debug.sh b/ci/x86_64-linux-debug.sh
index d3e16a3954..7f2382f04a 100755
--- a/ci/x86_64-linux-debug.sh
+++ b/ci/x86_64-linux-debug.sh
@@ -97,3 +97,9 @@ unset CXX
 ninja install
 
 stage3/bin/zig test ../test/behavior.zig -I../test
+stage3/bin/zig build -p stage4 \
+  -Dstatic-llvm \
+  -Dtarget=native-native-musl \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$(pwd)/../lib"
+stage4/bin/zig test ../test/behavior.zig -I../test
diff --git a/ci/x86_64-linux-release.sh b/ci/x86_64-linux-release.sh
index cec08fae84..cdb24e4a6f 100755
--- a/ci/x86_64-linux-release.sh
+++ b/ci/x86_64-linux-release.sh
@@ -114,3 +114,9 @@ unset CXX
 ninja install
 
 stage3/bin/zig test ../test/behavior.zig -I../test
+stage3/bin/zig build -p stage4 \
+  -Dstatic-llvm \
+  -Dtarget=native-native-musl \
+  --search-prefix "$PREFIX" \
+  --zig-lib-dir "$(pwd)/../lib"
+stage4/bin/zig test ../test/behavior.zig -I../test