diff --git a/deployments/systemd/nvidia-cdi-refresh.service b/deployments/systemd/nvidia-cdi-refresh.service
index 2764d5a2c..2a6f8a01f 100644
--- a/deployments/systemd/nvidia-cdi-refresh.service
+++ b/deployments/systemd/nvidia-cdi-refresh.service
@@ -23,7 +23,7 @@ Type=oneshot
 # Values from Environment will be replaced if defined in EnvironmentFile
 Environment=NVIDIA_CTK_CDI_OUTPUT_FILE_PATH=/var/run/cdi/nvidia.yaml
 EnvironmentFile=-/etc/nvidia-container-toolkit/nvidia-cdi-refresh.env
-ExecCondition=/usr/bin/grep -qE '/(nvidia|nvidia-current)\.ko[:]' /lib/modules/%v/modules.dep
+ExecCondition=/usr/bin/grep -qE '/(nvidia|nvidia-current)\\.ko' /lib/modules/%v/modules.dep
 ExecStart=/usr/bin/nvidia-ctk cdi generate
 CapabilityBoundingSet=CAP_SYS_MODULE CAP_SYS_ADMIN CAP_MKNOD