--- qtwebengine/mkspecs/features/functions.prf
+++ qtwebengine/mkspecs/features/functions.prf
@@ -95,6 +95,7 @@
     contains(qtArch, "arm64"): return(arm64)
     contains(qtArch, "mips"): return(mipsel)
     contains(qtArch, "mips64"): return(mips64el)
+    contains(qtArch, "power64"): return(ppc64)
     return(unknown)
 }
 
--- qtwebengine/mkspecs/features/platform.prf
+++ qtwebengine/mkspecs/features/platform.prf
@@ -82,6 +82,7 @@
     contains(QT_ARCH, "arm")|contains(QT_ARCH, "arm64"): return(true)
     contains(QT_ARCH, "mips"): return(true)
 #     contains(QT_ARCH, "mips64"): return(true)
+    contains(QT_ARCH, "power64"): return(true)
 
     skipBuild("QtWebEngine can only be built for x86, x86-64, ARM, Aarch64, and MIPSel architectures.")
     return(false)