diff --git a/src/keymap.c b/src/keymap.c
index 96d250c..6f644ce 100644
--- a/src/keymap.c
+++ b/src/keymap.c
@@ -574,3 +574,27 @@ XkbResolveKeyAlias(struct xkb_keymap *keymap, xkb_atom_t name)
 
     return XKB_ATOM_NONE;
 }
+
+void
+XkbEscapeMapName(char *name)
+{
+    /*
+     * All latin-1 alphanumerics, plus parens, slash, minus, underscore and
+     * wildcards.
+     */
+    static const unsigned char legal[] = {
+        0x00, 0x00, 0x00, 0x00, 0x00, 0xa7, 0xff, 0x83,
+        0xfe, 0xff, 0xff, 0x87, 0xfe, 0xff, 0xff, 0x07,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff
+    };
+
+    if (!name)
+        return;
+
+    while (*name) {
+        if (!(legal[*name / 8] & (1 << (*name % 8))))
+            *name = '_';
+        name++;
+    }
+}
diff --git a/src/keymap.h b/src/keymap.h
index d8cc5ce..80522e8 100644
--- a/src/keymap.h
+++ b/src/keymap.h
@@ -418,6 +418,9 @@ XkbKeyByName(struct xkb_keymap *keymap, xkb_atom_t name, bool use_aliases);
 xkb_atom_t
 XkbResolveKeyAlias(struct xkb_keymap *keymap, xkb_atom_t name);
 
+void
+XkbEscapeMapName(char *name);
+
 xkb_layout_index_t
 wrap_group_into_range(int32_t group,
                       xkb_layout_index_t num_groups,
diff --git a/src/xkbcomp/ast-build.c b/src/xkbcomp/ast-build.c
index cc16196..d470884 100644
--- a/src/xkbcomp/ast-build.c
+++ b/src/xkbcomp/ast-build.c
@@ -495,30 +495,6 @@ err:
     return NULL;
 }
 
-void
-XkbEscapeMapName(char *name)
-{
-    /*
-     * All latin-1 alphanumerics, plus parens, slash, minus, underscore and
-     * wildcards.
-     */
-    static const unsigned char legal[] = {
-        0x00, 0x00, 0x00, 0x00, 0x00, 0xa7, 0xff, 0x83,
-        0xfe, 0xff, 0xff, 0x87, 0xfe, 0xff, 0xff, 0x07,
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        0xff, 0xff, 0x7f, 0xff, 0xff, 0xff, 0x7f, 0xff
-    };
-
-    if (!name)
-        return;
-
-    while (*name) {
-        if (!(legal[*name / 8] & (1 << (*name % 8))))
-            *name = '_';
-        name++;
-    }
-}
-
 XkbFile *
 XkbFileCreate(struct xkb_context *ctx, enum xkb_file_type type, char *name,
               ParseCommon *defs, enum xkb_map_flags flags)
diff --git a/src/xkbcomp/xkbcomp-priv.h b/src/xkbcomp/xkbcomp-priv.h
index 7e21d53..6cb774d 100644
--- a/src/xkbcomp/xkbcomp-priv.h
+++ b/src/xkbcomp/xkbcomp-priv.h
@@ -56,9 +56,6 @@ XkbFile *
 XkbFileFromComponents(struct xkb_context *ctx,
                       const struct xkb_component_names *kkctgs);
 
-void
-XkbEscapeMapName(char *name);
-
 bool
 CompileKeycodes(XkbFile *file, struct xkb_keymap *keymap,
                 enum merge_mode merge);