diff --git a/ci/script.sh b/ci/script.sh
index 46e82c1..03f71c3 100755
--- a/ci/script.sh
+++ b/ci/script.sh
@@ -11,6 +11,7 @@ pushd ./example
 cargo rustc \
       --release \
       -- \
+      -Ccodegen-units=1 \
       -Cpasses=sancov-module \
       -Cllvm-args=-sanitizer-coverage-level=3 \
       -Cllvm-args=-sanitizer-coverage-trace-compares \
@@ -26,6 +27,7 @@ pushd ./example_arbitrary
 cargo rustc \
       --release \
       -- \
+      -Ccodegen-units=1 \
       -Cpasses=sancov-module \
       -Cllvm-args=-sanitizer-coverage-level=3 \
       -Cllvm-args=-sanitizer-coverage-trace-compares \
@@ -46,6 +48,7 @@ pushd ./example_mutator
 cargo rustc \
       --release \
       -- \
+      -Ccodegen-units=1 \
       -Cpasses=sancov-module \
       -Cllvm-args=-sanitizer-coverage-level=3 \
       -Cllvm-args=-sanitizer-coverage-trace-compares \