diff --git a/src/libs/3rdparty/botan/botan.pri b/src/libs/3rdparty/botan/botan.pri
index 7845d6081efdf4605e4877716807888ac24c5343..1088c9973262976021fea9a98afa8a3ba40e01bb 100644
--- a/src/libs/3rdparty/botan/botan.pri
+++ b/src/libs/3rdparty/botan/botan.pri
@@ -6,7 +6,7 @@ CONFIG += exceptions
 
 DEPENDPATH += .
 
-DEFINES += BOTAN_DLL="\"\""
+DEFINES += BOTAN_DLL=
 unix:DEFINES += BOTAN_TARGET_OS_HAS_GETTIMEOFDAY BOTAN_HAS_ALLOC_MMAP \
     BOTAN_HAS_ENTROPY_SRC_DEV_RANDOM BOTAN_HAS_ENTROPY_SRC_EGD BOTAN_HAS_ENTROPY_SRC_FTW \
     BOTAN_HAS_ENTROPY_SRC_UNIX BOTAN_HAS_MUTEX_PTHREAD BOTAN_HAS_PIPE_UNIXFD_IO
diff --git a/src/libs/ssh/ssh.qbs b/src/libs/ssh/ssh.qbs
index 8589cd2b4f4c220b3b2349808a4ead178ff3863d..052e80fabc266bfb055cf1151ebc90591aea0a1a 100644
--- a/src/libs/ssh/ssh.qbs
+++ b/src/libs/ssh/ssh.qbs
@@ -51,7 +51,7 @@ QtcLibrary {
     property var botanIncludes: ["../3rdparty"]
     property var botanLibs: qbs.targetOS === "windows" ? ["advapi32", "user32"] : ["rt", "dl"]
     property var botanDefines: {
-            var result = ['BOTAN_DLL=""']
+            var result = ['BOTAN_DLL=']
             if (qbs.toolchain === "msvc")
                 result.push("BOTAN_BUILD_COMPILER_IS_MSVC", "BOTAN_TARGET_OS_HAS_GMTIME_S")
             if (qbs.toolchain === "gcc" || qbs.toolchain === "mingw")