diff --git a/debian/_base/dependencies/pytqt/debian/rules b/debian/_base/dependencies/pytqt/debian/rules
index 532bf34bd..0da3e5231 100755
--- a/debian/_base/dependencies/pytqt/debian/rules
+++ b/debian/_base/dependencies/pytqt/debian/rules
@@ -39,7 +39,7 @@ ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
 else
 	CXXFLAGS += -O1
 endif
-CXXFLAGS += "-I/usr/include/tqt"
+CXXFLAGS += "-I/usr/include/tqt" "-I/usr/include/tqt3"
 
 PYTHONS	:= $(shell py3versions -vr)
 
diff --git a/dilos/dependencies/pytqt/debian/rules b/dilos/dependencies/pytqt/debian/rules
index d7427e40a..d0f0a6a28 100755
--- a/dilos/dependencies/pytqt/debian/rules
+++ b/dilos/dependencies/pytqt/debian/rules
@@ -39,7 +39,7 @@ ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
 else
 	CXXFLAGS += -O1
 endif
-CXXFLAGS += "-I/usr/include/tqt"
+CXXFLAGS += "-I/usr/include/tqt" "-I/usr/include/tqt3"
 
 PYTHONS	:= $(shell py3versions -vr)
 
diff --git a/ubuntu/_base/dependencies/pytqt/debian/rules b/ubuntu/_base/dependencies/pytqt/debian/rules
index 532bf34bd..0da3e5231 100755
--- a/ubuntu/_base/dependencies/pytqt/debian/rules
+++ b/ubuntu/_base/dependencies/pytqt/debian/rules
@@ -39,7 +39,7 @@ ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
 else
 	CXXFLAGS += -O1
 endif
-CXXFLAGS += "-I/usr/include/tqt"
+CXXFLAGS += "-I/usr/include/tqt" "-I/usr/include/tqt3"
 
 PYTHONS	:= $(shell py3versions -vr)