diff --git a/pkgs/build-support/kernel/modules-closure.sh b/pkgs/build-support/kernel/modules-closure.sh
index 5658094872c84..dbe1eb0eb13e5 100644
--- a/pkgs/build-support/kernel/modules-closure.sh
+++ b/pkgs/build-support/kernel/modules-closure.sh
@@ -22,10 +22,13 @@ echo "kernel version is $version"
 closure=
 for module in $rootModules; do
     echo "root module: $module"
-    deps=$(modprobe --config no-config -d $kernel --set-version "$version" --show-depends "$module" \
-        | sed 's/^insmod //') \
-        || if test -z "$allowMissing"; then exit 1; fi
-    if [[ "$deps" != builtin* ]]; then
+    # Obtain the module dependencies with modprobe.
+    rawdeps=$(modprobe --config no-config -d "$kernel" --set-version "$version" --show-depends "$module") \
+     || if test -z "$allowMissing"; then exit 1; fi
+
+    if [[ "$rawdeps" != builtin* ]]; then
+        # Extract the module name from modprobe output and throws away the insmod part and the module arguments.
+        deps=$(printf '%s' "$rawdeps" | sed 's/^insmod \([^ ]*\).*/\1/')
         closure="$closure $deps"
     fi
 done