diff --git a/internal/cgen/base/fundamental-public.h b/internal/cgen/base/fundamental-public.h
index a848500..43ead3f 100644
--- a/internal/cgen/base/fundamental-public.h
+++ b/internal/cgen/base/fundamental-public.h
@@ -33,7 +33,7 @@
 #define WUFFS_VERSION_MAJOR 0
 #define WUFFS_VERSION_MINOR 0
 #define WUFFS_VERSION_PATCH 0
-#define WUFFS_VERSION_PRE_RELEASE_LABEL "work.in.progress"
+#define WUFFS_VERSION_PRE_RELEASE_LABEL "unsupported.snapshot"
 #define WUFFS_VERSION_BUILD_METADATA_COMMIT_COUNT 0
 #define WUFFS_VERSION_BUILD_METADATA_COMMIT_DATE 0
 #define WUFFS_VERSION_STRING "0.0.0+0.00000000"
diff --git a/release/c/wuffs-unsupported-snapshot.c b/release/c/wuffs-unsupported-snapshot.c
index 8974e21..ff21071 100644
--- a/release/c/wuffs-unsupported-snapshot.c
+++ b/release/c/wuffs-unsupported-snapshot.c
@@ -89,7 +89,7 @@
 #define WUFFS_VERSION_MAJOR 0
 #define WUFFS_VERSION_MINOR 0
 #define WUFFS_VERSION_PATCH 0
-#define WUFFS_VERSION_PRE_RELEASE_LABEL "work.in.progress"
+#define WUFFS_VERSION_PRE_RELEASE_LABEL "unsupported.snapshot"
 #define WUFFS_VERSION_BUILD_METADATA_COMMIT_COUNT 0
 #define WUFFS_VERSION_BUILD_METADATA_COMMIT_DATE 0
 #define WUFFS_VERSION_STRING "0.0.0+0.00000000"