diff --git a/set-version/action.yaml b/set-version/action.yaml
index 47f1d84..da137dc 100644
--- a/set-version/action.yaml
+++ b/set-version/action.yaml
@@ -6,6 +6,10 @@ inputs:
     description: "Suffix for version (e.g. dev, alpha, beta)"
     required: false
     default: ""
+  suffix_separator:
+    description: "Separator between version and suffix (either '.' or '-')"
+    required: false
+    default: "-"
 
 runs:
   using: "composite"
@@ -33,11 +37,10 @@ runs:
         fi
 
         VERSION_SUFFIX="${{ inputs.version_suffix }}"
+        SUFFIX_SEPARATOR="${{ inputs.suffix_separator }}"
 
-        if [ -n "$VERSION_SUFFIX" ] && [ "$VERSION_SUFFIX" = "dev" ]; then
-          BUILD_VERSION="${DATE}.dev${BUILD_NUMBER}"
-        elif [ -n "$VERSION_SUFFIX" ]; then
-          BUILD_VERSION="${DATE}.${BUILD_NUMBER}${VERSION_SUFFIX}"
+        if [ -n "$VERSION_SUFFIX" ]; then
+          BUILD_VERSION="${DATE}.${BUILD_NUMBER}${SUFFIX_SEPARATOR}${VERSION_SUFFIX}"
         else
           BUILD_VERSION="${DATE}.${BUILD_NUMBER}"
         fi