diff --git a/dlls/winex11.drv/clipboard.c b/dlls/winex11.drv/clipboard.c
index 37a115e9f46..bd3ef7b3a10 100644
--- a/dlls/winex11.drv/clipboard.c
+++ b/dlls/winex11.drv/clipboard.c
@@ -2400,6 +2400,7 @@ static BOOL X11DRV_CLIPBOARD_ReadProperty(Display *display, Window w, Atom prop,
             if (!tmp)
             {
                 HeapFree(GetProcessHeap(), 0, buf);
+                HeapFree(GetProcessHeap(), 0, prop_data);
                 return FALSE;
             }
 
diff --git a/dlls/winex11.drv/xrender.c b/dlls/winex11.drv/xrender.c
index d7f05081083..389f6847735 100644
--- a/dlls/winex11.drv/xrender.c
+++ b/dlls/winex11.drv/xrender.c
@@ -1405,9 +1405,9 @@ static void UploadGlyph(struct xrender_physdev *physDev, int glyph, AA_Type form
 
 	pXRenderAddGlyphs(gdi_display, formatEntry->glyphset, &gid, &gi, 1,
                           buflen ? buf : zero, buflen ? buflen : sizeof(zero));
-	HeapFree(GetProcessHeap(), 0, buf);
     }
 
+    HeapFree(GetProcessHeap(), 0, buf);
     formatEntry->gis[glyph] = gi;
 }