diff --git a/.travis.yml b/.travis.yml
index fc9ef29..52e6a0a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -109,7 +109,7 @@ matrix:
 
     - os: linux
       compiler: g++-7
-      env: UBSAN=1 TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11,14,17
+      env: UBSAN=1 TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11,14,17 UBSAN_OPTIONS=print_stacktrace=1
       addons:
         apt:
           packages:
@@ -219,7 +219,7 @@ matrix:
 
     - os: linux
       compiler: clang++-5.0
-      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-5.0 CXXSTD=03,11,14,1z
+      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-5.0 CXXSTD=03,11,14,1z UBSAN_OPTIONS=print_stacktrace=1
       addons:
         apt:
           packages:
@@ -238,7 +238,7 @@ matrix:
 
     - os: linux
       compiler: clang++-libc++
-      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z
+      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z UBSAN_OPTIONS=print_stacktrace=1
       addons:
         apt:
           packages:
@@ -264,7 +264,7 @@ install:
 script:
   - |-
     echo "using $TOOLSET : : $COMPILER ;" > ~/user-config.jam
-  - ./b2 -j3 libs/system/test toolset=$TOOLSET cxxstd=$CXXSTD variant=debug,release ${UBSAN:+cxxflags=-fsanitize=undefined} ${UBSAN:+cxxflags=-fno-sanitize-recover=undefined} ${UBSAN:+linkflags=-fsanitize=undefined} ${UBSAN:+define=UBSAN=1}
+  - ./b2 -j3 libs/system/test toolset=$TOOLSET cxxstd=$CXXSTD variant=debug,release ${UBSAN:+cxxflags=-fsanitize=undefined cxxflags=-fno-sanitize-recover=undefined linkflags=-fsanitize=undefined define=UBSAN=1 debug-symbols=on}
 
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