diff --git a/sys/arm/at91/at91_pmc.c b/sys/arm/at91/at91_pmc.c
index 572bfa0de2b..10b124890f9 100644
--- a/sys/arm/at91/at91_pmc.c
+++ b/sys/arm/at91/at91_pmc.c
@@ -63,8 +63,8 @@ static struct at91_pmc_softc {
 
 static uint32_t pllb_init;
 
-MALLOC_DECLARE(M_PMC);
-MALLOC_DEFINE(M_PMC, "at91_pmc_clocks", "AT91 PMC Clock descriptors");
+MALLOC_DECLARE(M_PMC_CLK);
+MALLOC_DEFINE(M_PMC_CLK, "at91_pmc_clocks", "AT91 PMC Clock descriptors");
 
 #define AT91_PMC_BASE 0xffffc00
 
@@ -300,12 +300,12 @@ at91_pmc_clock_add(const char *name, uint32_t irq,
 	struct at91_pmc_clock *clk;
 	int i, buflen;
 
-	clk = malloc(sizeof(*clk), M_PMC, M_NOWAIT | M_ZERO);
+	clk = malloc(sizeof(*clk), M_PMC_CLK, M_NOWAIT | M_ZERO);
 	if (clk == NULL)
 		goto err;
 
 	buflen = strlen(name) + 1;
-	clk->name = malloc(buflen, M_PMC, M_NOWAIT);
+	clk->name = malloc(buflen, M_PMC_CLK, M_NOWAIT);
 	if (clk->name == NULL)
 		goto err;
 
@@ -326,8 +326,8 @@ at91_pmc_clock_add(const char *name, uint32_t irq,
 err:
 	if (clk != NULL) {
 		if (clk->name != NULL)
-			free(clk->name, M_PMC);
-		free(clk, M_PMC);
+			free(clk->name, M_PMC_CLK);
+		free(clk, M_PMC_CLK);
 	}
 
 	panic("could not allocate pmc clock '%s'", name);