diff --git a/libmypaint.spec b/libmypaint.spec
index cd8ba5e..8bdbea9 100644
--- a/libmypaint.spec
+++ b/libmypaint.spec
@@ -39,6 +39,9 @@ This package contains files needed for development with libmypaint.
 %prep
 %autosetup -p1
 
+# Make sure the build uses python3
+sed -i -e 's/python -c/python3 -c/g' configure
+
 %build
 %configure --enable-docs --enable-introspection=yes --disable-gegl
 %make_build