diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index a17d3c37..0a4a8e03 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -198,6 +198,7 @@ apps:
       # Ensure libraries are found
       LD_LIBRARY_PATH: $SNAP/odm/SuperBuild/install/lib:$SNAP/usr/lib/$SNAPCRAFT_ARCH_TRIPLET/blas:$SNAP/usr/lib/$SNAPCRAFT_ARCH_TRIPLET/lapack
       PYTHONPATH: $SNAP/odm/SuperBuild/install/lib/python3.8/site-packages:$SNAP/lib/python3.8/site-packages:$SNAP/usr/lib/python3/dist-packages/:$SNAP/usr/lib/python3.8:$SNAP/odm/SuperBuild/install/bin/opensfm
+      PROJ_LIB: $SNAP/usr/share/proj
     plugs:
       - home
       - network
diff --git a/snap/snapcraft21.yaml b/snap/snapcraft21.yaml
index ce4ce727..299b579b 100644
--- a/snap/snapcraft21.yaml
+++ b/snap/snapcraft21.yaml
@@ -200,6 +200,7 @@ apps:
       # Ensure libraries are found
       LD_LIBRARY_PATH: $SNAP/odm/SuperBuild/install/lib:$SNAP/usr/lib/$SNAPCRAFT_ARCH_TRIPLET/blas:$SNAP/usr/lib/$SNAPCRAFT_ARCH_TRIPLET/lapack
       PYTHONPATH: $SNAP/odm/SuperBuild/install/lib/python3.8/site-packages:$SNAP/lib/python3.8/site-packages:$SNAP/usr/lib/python3/dist-packages/:$SNAP/usr/lib/python3.8:$SNAP/odm/SuperBuild/install/bin/opensfm
+      PROJ_LIB: $SNAP/usr/share/proj
     plugs:
       - home
       - network