diff --git a/.travis/build-debian.sh b/.travis/build-debian.sh
index 9d0a4c05..124e45ba 100755
--- a/.travis/build-debian.sh
+++ b/.travis/build-debian.sh
@@ -1,6 +1,6 @@
 #!/bin/sh -xe
 
-if echo $TRAVIS_TAG | grep ^release-; then BUILD_TYPE=RelWithDebInfo; else BUILD_TYPE=Debug; fi
+if echo $TRAVIS_TAG | grep ^v; then BUILD_TYPE=RelWithDebInfo; else BUILD_TYPE=Debug; fi
 
 export BUILD_TYPE
 dpkg-buildpackage -b -us -uc
diff --git a/.travis/build-macos.sh b/.travis/build-macos.sh
index f6fe8f6c..ec0e7d05 100755
--- a/.travis/build-macos.sh
+++ b/.travis/build-macos.sh
@@ -1,6 +1,6 @@
 #!/bin/sh -xe
 
-if echo $TRAVIS_TAG | grep ^release-; then BUILD_TYPE=RelWithDebInfo; else BUILD_TYPE=Debug; fi
+if echo $TRAVIS_TAG | grep ^v; then BUILD_TYPE=RelWithDebInfo; else BUILD_TYPE=Debug; fi
 
 mkdir build
 cd build
diff --git a/appveyor.yml b/appveyor.yml
index dc5a766a..8078a565 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -5,7 +5,7 @@ before_build:
   - mkdir build
   - cd build
   - set tag=x%APPVEYOR_REPO_TAG_NAME%
-  - if %tag:~,9% == xrelease- (set BUILD_TYPE=RelWithDebInfo) else (set BUILD_TYPE=Debug)
+  - if %tag:~,2% == xv (set BUILD_TYPE=RelWithDebInfo) else (set BUILD_TYPE=Debug)
   - cmake -G"Visual Studio 12" -T v120_xp -DCMAKE_BUILD_TYPE=%BUILD_TYPE% ..
 build_script:
   - msbuild "src\solvespace.vcxproj" /verbosity:minimal /property:Configuration=%BUILD_TYPE% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"