diff --git a/include/extinit.h b/include/extinit.h
index 46081ad30..59d18962f 100644
--- a/include/extinit.h
+++ b/include/extinit.h
@@ -108,6 +108,7 @@ extern _X_EXPORT Bool noScreenSaverExtension;
 extern void ScreenSaverExtensionInit(void);
 #endif
 
+extern _X_EXPORT Bool noShapeExtension;
 extern void ShapeExtensionInit(void);
 
 #ifdef MITSHM
diff --git a/mi/miinitext.c b/mi/miinitext.c
index 2e4aba534..26c1eb03c 100644
--- a/mi/miinitext.c
+++ b/mi/miinitext.c
@@ -109,7 +109,7 @@ SOFTWARE.
 /* List of built-in (statically linked) extensions */
 static const ExtensionModule staticExtensions[] = {
     {GEExtensionInit, "Generic Event Extension", &noGEExtension},
-    {ShapeExtensionInit, "SHAPE", NULL},
+    {ShapeExtensionInit, "SHAPE", &noShapeExtension},
 #ifdef MITSHM
     {ShmExtensionInit, "MIT-SHM", &noMITShmExtension},
 #endif
diff --git a/os/utils.c b/os/utils.c
index 405bf7d8b..a4712d0bf 100644
--- a/os/utils.c
+++ b/os/utils.c
@@ -143,6 +143,7 @@ Bool noMITShmExtension = FALSE;
 Bool noRRExtension = FALSE;
 #endif
 Bool noRenderExtension = FALSE;
+Bool noShapeExtension = FALSE;
 
 #ifdef XCSECURITY
 Bool noSecurityExtension = FALSE;