diff --git a/.gitlab/ci/jobs/windows-x64.yml b/.gitlab/ci/jobs/windows-x64.yml
index 93f49665f..d8824e185 100644
--- a/.gitlab/ci/jobs/windows-x64.yml
+++ b/.gitlab/ci/jobs/windows-x64.yml
@@ -35,7 +35,7 @@ Windows x64:
 
   variables:
     PREFIX: x86_64-w64-mingw32
-    VCPKG_DEFAULT_TRIPLET=x64-mingw-static
+    VCPKG_DEFAULT_TRIPLET: x64-mingw-static
 
   script:
     - |
diff --git a/.gitlab/ci/jobs/windows-x86.yml b/.gitlab/ci/jobs/windows-x86.yml
index dcb87b099..f375042d7 100644
--- a/.gitlab/ci/jobs/windows-x86.yml
+++ b/.gitlab/ci/jobs/windows-x86.yml
@@ -31,7 +31,7 @@ Windows x86:
 
   variables:
     PREFIX: i686-w64-mingw32
-    VCPKG_DEFAULT_TRIPLET=x86-mingw-static
+    VCPKG_DEFAULT_TRIPLET: x86-mingw-static
 
   script:
     - |