diff --git a/.github/workflows/build-macos-arm64.yaml b/.github/workflows/build-macos-arm64.yaml
index fc3815b1e0..397f24df37 100644
--- a/.github/workflows/build-macos-arm64.yaml
+++ b/.github/workflows/build-macos-arm64.yaml
@@ -239,7 +239,7 @@ jobs:
         run: |
           # apparently order is not alphabetic, so cannot be relied upon for a single grep
           flags=$(git annex version | grep 'build flags:')
-          for f in Assistant MagicMime Servant S3; do
+          for f in Assistant MagicMime Servant S3 OsPath; do
             echo -n "Checking for $f: "
             echo "$flags" | grep --color "$f" || { echo "FAIL"; exit 1; }
           done
diff --git a/.github/workflows/build-macos.yaml b/.github/workflows/build-macos.yaml
index b8c8e91b22..73a314a1b2 100644
--- a/.github/workflows/build-macos.yaml
+++ b/.github/workflows/build-macos.yaml
@@ -238,7 +238,7 @@ jobs:
         run: |
           # apparently order is not alphabetic, so cannot be relied upon for a single grep
           flags=$(git annex version | grep 'build flags:')
-          for f in Assistant MagicMime Servant S3; do
+          for f in Assistant MagicMime Servant S3 OsPath; do
             echo -n "Checking for $f: "
             echo "$flags" | grep --color "$f" || { echo "FAIL"; exit 1; }
           done
diff --git a/.github/workflows/build-ubuntu.yaml b/.github/workflows/build-ubuntu.yaml
index 98b8c76824..fa953953b7 100644
--- a/.github/workflows/build-ubuntu.yaml
+++ b/.github/workflows/build-ubuntu.yaml
@@ -279,7 +279,7 @@ jobs:
         run: |
           # apparently order is not alphabetic, so cannot be relied upon for a single grep
           flags=$(git annex version | grep 'build flags:')
-          for f in Assistant MagicMime Servant S3; do
+          for f in Assistant MagicMime Servant S3 OsPath; do
             echo -n "Checking for $f: "
             echo "$flags" | grep --color "$f" || { echo "FAIL"; exit 1; }
           done
diff --git a/.github/workflows/build-windows.yaml b/.github/workflows/build-windows.yaml
index 6af6b196d6..27b1677bb5 100644
--- a/.github/workflows/build-windows.yaml
+++ b/.github/workflows/build-windows.yaml
@@ -261,7 +261,7 @@ jobs:
         run: |
           # apparently order is not alphabetic, so cannot be relied upon for a single grep
           flags=$(git annex version | grep 'build flags:')
-          for f in Assistant MagicMime Servant S3; do
+          for f in Assistant MagicMime Servant S3 OsPath; do
             echo -n "Checking for $f: "
             echo "$flags" | grep --color "$f" || { echo "FAIL"; exit 1; }
           done
diff --git a/.github/workflows/template/build-{{ostype}}.yaml.j2 b/.github/workflows/template/build-{{ostype}}.yaml.j2
index 8b33b0a8d0..0ae34ada4d 100644
--- a/.github/workflows/template/build-{{ostype}}.yaml.j2
+++ b/.github/workflows/template/build-{{ostype}}.yaml.j2
@@ -456,7 +456,7 @@ jobs:
         run: |
           # apparently order is not alphabetic, so cannot be relied upon for a single grep
           flags=$(git annex version | grep 'build flags:')
-          for f in Assistant MagicMime Servant S3; do
+          for f in Assistant MagicMime Servant S3 OsPath; do
             echo -n "Checking for $f: "
             echo "$flags" | grep --color "$f" || { echo "FAIL"; exit 1; }
           done