diff --git a/CMakeLists.txt b/CMakeLists.txt
index 76dbd39dd..5ab265408 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -192,7 +192,9 @@ include(CheckSymbolExists)
 check_include_files("langinfo.h" HAVE_LANGINFO_CODESET)
 check_include_files("sys/resource.h" HAVE_SYS_RESOURCE_H)
 
+check_include_files("malloc.h" HAVE_MALLOC_H)
 check_symbol_exists("malloc_trim" "malloc.h" HAVE_MALLOC_TRIM)
+
 check_function_exists(mallinfo HAVE_MALLINFO)
 check_function_exists(mallinfo2 HAVE_MALLINFO2)
 
diff --git a/config.h.cmake b/config.h.cmake
index edd876469..9f6b2c3f3 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -5,6 +5,7 @@
 #cmakedefine ICONV_2ARG_IS_CONST 1
 #cmakedefine HAVE_MALLINFO
 #cmakedefine HAVE_MALLINFO2
+#cmakedefine HAVE_MALLOC_H
 #cmakedefine HAVE_MALLOC_TRIM
 #cmakedefine HAVE_EAT_NEWLINE_GLITCH
 #cmakedefine HAVE_ASPELL_VERSION_STRING
diff --git a/src/core/wee-command.c b/src/core/wee-command.c
index d94ef9a46..3f4f631f2 100644
--- a/src/core/wee-command.c
+++ b/src/core/wee-command.c
@@ -40,7 +40,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <errno.h>
-#ifdef HAVE_MALLOC_TRIM
+#ifdef HAVE_MALLOC_H
 #include <malloc.h>
 #endif