diff --git a/cmake/FindLcov.cmake b/cmake/FindLcov.cmake
index 244d1c2..d4e0188 100644
--- a/cmake/FindLcov.cmake
+++ b/cmake/FindLcov.cmake
@@ -169,7 +169,7 @@ function (lcov_capture_initial_tgt TNAME)
 		list(APPEND GENINFO_FILES ${OUTFILE})
 
 		add_custom_command(OUTPUT ${OUTFILE} COMMAND ${GCOV_ENV} ${GENINFO_BIN}
-				--quiet --base-directory ${PROJECT_SOURCE_DIR} --initial
+				--quiet --ignore-errors mismatch --base-directory ${PROJECT_SOURCE_DIR} --initial
 				--gcov-tool ${GCOV_BIN} --output-filename ${OUTFILE}
 				${GENINFO_EXTERN_FLAG} ${TDIR}/${FILE}.gcno
 			DEPENDS ${TNAME}
@@ -269,7 +269,7 @@ function (lcov_capture_tgt TNAME)
 
 		add_custom_command(OUTPUT ${OUTFILE}
 			COMMAND test -s "${TDIR}/${FILE}.gcda"
-				&& ${GCOV_ENV} ${GENINFO_BIN} --quiet --base-directory
+				&& ${GCOV_ENV} ${GENINFO_BIN} --quiet --ignore-errors mismatch --base-directory
 					${PROJECT_SOURCE_DIR} --gcov-tool ${GCOV_BIN}
 					--output-filename ${OUTFILE} ${GENINFO_EXTERN_FLAG}
 					${TDIR}/${FILE}.gcda