diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index c6145cd4..f893ab62 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -35,10 +35,10 @@ jobs:
             run: echo "IsTagBuild=true" >> $GITHUB_ENV
             
           - name: Generate Beta Suffix
-            if: env.IsTagBuild == 'true' && contains(github.ref_name, '/')
+            if: env.IsTagBuild == 'true' && contains(github.ref_name, '-')
             env: 
               REF_NAME: ${{ github.ref_name }}
-            run: echo "Suffix=${REF_NAME##*/}" >> $GITHUB_ENV
+            run: echo "Suffix=${REF_NAME##*-}" >> $GITHUB_ENV
           
           - name: Generate Suffix
             if: env.IsTagBuild != 'true'
@@ -94,10 +94,10 @@ jobs:
           run: echo "IsTagBuild=true" >> $GITHUB_ENV
           
         - name: Generate Beta Suffix
-          if: env.IsTagBuild == 'true' && contains(github.ref_name, '/')
+          if: env.IsTagBuild == 'true' && contains(github.ref_name, '-')
           env: 
             REF_NAME: ${{ github.ref_name }}
-          run: echo "Suffix=-${REF_NAME##*/}" >> $GITHUB_ENV
+          run: echo "Suffix=-${REF_NAME##*-}" >> $GITHUB_ENV
 
         - name: Generate Suffix
           if: env.IsTagBuild != 'true'