diff --git a/debian/lenny/tdesdk/debian/control b/debian/lenny/tdesdk/debian/control
index b2600f229..f84638272 100644
--- a/debian/lenny/tdesdk/debian/control
+++ b/debian/lenny/tdesdk/debian/control
@@ -5,7 +5,7 @@ Maintainer: Timothy Pearson <kb9vqf@pearsoncomputing.net>
 XSBC-Original-Maintainer: Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>
 Uploaders: Ana Beatriz Guerrero Lopez <ana@debian.org>, Fathi Boudra <fboudra@free.fr>, Josh Metzler <joshdeb@metzlers.org>, Sune Vuorela <debian@pusling.com>
 Build-Depends: libasound2-dev, cdbs (>= 0.4.39-0.1), debhelper (>= 7.0.50~), quilt, cmake, autotools-dev, gawk,
- gettext, pkg-config, tdelibs14-trinity-dev, binutils-dev, bison, flex,
+ gettext, pkg-config, tdelibs14-trinity-dev, binutils-dev, bison, flex, libfl-dev | flex (<< 2.5.39),
  tdepim-trinity-dev, libapr1-dev, libtdepim1-trinity-dev,
  libktnef1-trinity-dev, libsvn-dev, libdb-dev,
  libiberty-dev | binutils-dev (<< 2.23.91.20131123-1~),
diff --git a/debian/squeeze/tdesdk/debian/control b/debian/squeeze/tdesdk/debian/control
index b2600f229..f84638272 100644
--- a/debian/squeeze/tdesdk/debian/control
+++ b/debian/squeeze/tdesdk/debian/control
@@ -5,7 +5,7 @@ Maintainer: Timothy Pearson <kb9vqf@pearsoncomputing.net>
 XSBC-Original-Maintainer: Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>
 Uploaders: Ana Beatriz Guerrero Lopez <ana@debian.org>, Fathi Boudra <fboudra@free.fr>, Josh Metzler <joshdeb@metzlers.org>, Sune Vuorela <debian@pusling.com>
 Build-Depends: libasound2-dev, cdbs (>= 0.4.39-0.1), debhelper (>= 7.0.50~), quilt, cmake, autotools-dev, gawk,
- gettext, pkg-config, tdelibs14-trinity-dev, binutils-dev, bison, flex,
+ gettext, pkg-config, tdelibs14-trinity-dev, binutils-dev, bison, flex, libfl-dev | flex (<< 2.5.39),
  tdepim-trinity-dev, libapr1-dev, libtdepim1-trinity-dev,
  libktnef1-trinity-dev, libsvn-dev, libdb-dev,
  libiberty-dev | binutils-dev (<< 2.23.91.20131123-1~),
diff --git a/ubuntu/maverick/tdesdk/debian/control b/ubuntu/maverick/tdesdk/debian/control
index f4e094229..892904d3f 100644
--- a/ubuntu/maverick/tdesdk/debian/control
+++ b/ubuntu/maverick/tdesdk/debian/control
@@ -5,7 +5,7 @@ Maintainer: Timothy Pearson <kb9vqf@pearsoncomputing.net>
 XSBC-Original-Maintainer: Debian Qt/KDE Maintainers <debian-qt-kde@lists.debian.org>
 Uploaders: Ana Beatriz Guerrero Lopez <ana@debian.org>, Fathi Boudra <fboudra@free.fr>, Josh Metzler <joshdeb@metzlers.org>, Sune Vuorela <debian@pusling.com>
 Build-Depends: libasound2-dev, cdbs (>= 0.4.39-0.1), debhelper (>= 7.0.50~), quilt, cmake, autotools-dev, gawk,
- gettext, pkg-config, tdelibs14-trinity-dev, binutils-dev, bison, flex,
+ gettext, pkg-config, tdelibs14-trinity-dev, binutils-dev, bison, flex, libfl-dev | flex (<< 2.5.39),
  tdepim-trinity-dev, libapr1-dev, libtdepim1-trinity-dev,
  libktnef1-trinity-dev, libsvn-dev, libdb-dev,
  libiberty-dev | binutils-dev (<< 2.23.91.20131123-1~),