diff --git a/.github/workflows/abibreak.yaml b/.github/workflows/abibreak.yaml
index 4a359994..1f6a1047 100644
--- a/.github/workflows/abibreak.yaml
+++ b/.github/workflows/abibreak.yaml
@@ -33,7 +33,7 @@ jobs:
           path: libmatroska-new
       
       - name: Configure CMake 
-        run: cmake -S libmatroska-new -B _build -DBUILD_SHARED_LIBS=ON -DEBML_DIR="${GITHUB_WORKSPACE}/_built/lib/cmake/EBML" --config Debug
+        run: cmake -S libmatroska-new -B _build -DBUILD_SHARED_LIBS=ON -DEBML_DIR="${GITHUB_WORKSPACE}/_built/lib/cmake/EBML" -DCMAKE_BUILD_TYPE=RelWithDebInfo
 
       - name: Build
         run: cmake --build _build --parallel
@@ -48,7 +48,7 @@ jobs:
           ref: v1.x
       
       - name: Configure v1.x
-        run: cmake -S libmatroska-1 -B _build_1 -DBUILD_SHARED_LIBS=ON -DEBML_DIR="${GITHUB_WORKSPACE}/_built/lib/cmake/EBML" --config Debug
+        run: cmake -S libmatroska-1 -B _build_1 -DBUILD_SHARED_LIBS=ON -DEBML_DIR="${GITHUB_WORKSPACE}/_built/lib/cmake/EBML" -DCMAKE_BUILD_TYPE=RelWithDebInfo
 
       - name: Build v1.x
         run: cmake --build _build_1 --parallel
@@ -62,7 +62,9 @@ jobs:
           sudo apt install abigail-tools
 
       - name: Check ABI differences
-        run: abidiff --no-added-syms \
+        run: |
+          abidiff --help
+          abidiff --no-added-syms \
                      --headers-dir1 ${GITHUB_WORKSPACE}/dir1/include/matroska 
                      --headers-dir2 ${GITHUB_WORKSPACE}/dir2/include/matroska 
                      ${GITHUB_WORKSPACE}/dir1/lib/libmatroska.so